/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=BIGGEST --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 [2020-10-12 18:36:11,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:36:11,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:36:11,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:36:11,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:36:11,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:36:11,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:36:11,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:36:11,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:36:11,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:36:11,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:36:11,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:36:11,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:36:11,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:36:11,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:36:11,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:36:11,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:36:11,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:36:11,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:36:11,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:36:11,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:36:11,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:36:11,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:36:11,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:36:11,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:36:11,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:36:11,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:36:11,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:36:11,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:36:11,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:36:11,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:36:11,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:36:11,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:36:11,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:36:11,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:36:11,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:36:11,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:36:11,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:36:11,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:36:11,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:36:11,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:36:11,220 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 [2020-10-12 18:36:11,256 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:36:11,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:36:11,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:36:11,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:36:11,258 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:36:11,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:36:11,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:36:11,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:36:11,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:36:11,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:36:11,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:36:11,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:36:11,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:36:11,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:36:11,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:36:11,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:36:11,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:36:11,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:36:11,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:36:11,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:36:11,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:36:11,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:36:11,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:36:11,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:36:11,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:36:11,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:36:11,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:36:11,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:36:11,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:36:11,264 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:36:11,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:36:11,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:36:11,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:36:11,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:36:11,572 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:36:11,573 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:36:11,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c363f4662/00e224544f124e98a2ea38cef73bad55/FLAG2d4d37140 [2020-10-12 18:36:12,214 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:36:12,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:36:12,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c363f4662/00e224544f124e98a2ea38cef73bad55/FLAG2d4d37140 [2020-10-12 18:36:12,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c363f4662/00e224544f124e98a2ea38cef73bad55 [2020-10-12 18:36:12,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:36:12,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:36:12,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:36:12,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:36:12,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:36:12,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:36:12" (1/1) ... [2020-10-12 18:36:12,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115854be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:12, skipping insertion in model container [2020-10-12 18:36:12,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:36:12" (1/1) ... [2020-10-12 18:36:12,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:36:12,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:36:13,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:36:13,051 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:36:13,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:36:13,156 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:36:13,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13 WrapperNode [2020-10-12 18:36:13,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:36:13,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:36:13,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:36:13,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:36:13,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (1/1) ... [2020-10-12 18:36:13,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (1/1) ... [2020-10-12 18:36:13,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (1/1) ... [2020-10-12 18:36:13,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (1/1) ... [2020-10-12 18:36:13,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (1/1) ... [2020-10-12 18:36:13,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (1/1) ... [2020-10-12 18:36:13,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (1/1) ... [2020-10-12 18:36:13,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:36:13,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:36:13,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:36:13,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:36:13,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (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 [2020-10-12 18:36:13,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:36:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:36:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:36:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:36:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:36:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:36:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:36:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:36:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:36:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:36:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:36:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:36:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:36:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:36:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:36:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:36:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:36:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:36:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:36:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:36:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:36:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:36:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:36:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:36:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:36:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:36:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:36:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:36:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:36:14,742 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:36:14,743 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:36:14,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:36:14 BoogieIcfgContainer [2020-10-12 18:36:14,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:36:14,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:36:14,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:36:14,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:36:14,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:36:12" (1/3) ... [2020-10-12 18:36:14,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:36:14, skipping insertion in model container [2020-10-12 18:36:14,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:36:13" (2/3) ... [2020-10-12 18:36:14,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:36:14, skipping insertion in model container [2020-10-12 18:36:14,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:36:14" (3/3) ... [2020-10-12 18:36:14,759 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:36:14,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:36:14,778 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:36:14,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:36:14,819 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:36:14,820 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:36:14,820 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:36:14,820 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:36:14,820 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:36:14,821 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:36:14,821 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:36:14,821 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:36:14,846 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-10-12 18:36:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:36:14,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:14,863 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] [2020-10-12 18:36:14,864 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:14,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:14,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1386901003, now seen corresponding path program 1 times [2020-10-12 18:36:14,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:14,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583107984] [2020-10-12 18:36:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:36:15,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-10-12 18:36:15,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 18:36:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:15,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:36:16,319 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:16,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:16,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:36:16,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:36:16,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 18:36:16,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:16,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:36:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:16,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:36:16,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:16,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:36:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:16,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:16,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:36:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:16,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:16,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:16,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:36:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:16,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:16,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:36:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:16,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:16,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:16,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:36:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:16,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:16,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:16,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:16,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:16,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:36:16,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:16,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:16,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583107984] [2020-10-12 18:36:16,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:16,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:36:16,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780197742] [2020-10-12 18:36:16,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:36:16,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:16,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:36:16,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:36:16,778 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 7 states. [2020-10-12 18:36:18,253 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:36:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:19,040 INFO L93 Difference]: Finished difference Result 508 states and 855 transitions. [2020-10-12 18:36:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:36:19,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-12 18:36:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:19,062 INFO L225 Difference]: With dead ends: 508 [2020-10-12 18:36:19,062 INFO L226 Difference]: Without dead ends: 368 [2020-10-12 18:36:19,068 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 [2020-10-12 18:36:19,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-12 18:36:19,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-12 18:36:19,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-12 18:36:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 579 transitions. [2020-10-12 18:36:19,162 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 579 transitions. Word has length 104 [2020-10-12 18:36:19,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:19,162 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 579 transitions. [2020-10-12 18:36:19,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:36:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 579 transitions. [2020-10-12 18:36:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:36:19,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:19,167 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] [2020-10-12 18:36:19,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:36:19,167 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:19,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:19,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1810547725, now seen corresponding path program 1 times [2020-10-12 18:36:19,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:19,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954225315] [2020-10-12 18:36:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:19,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1235 [2020-10-12 18:36:20,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:36:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-12 18:36:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,975 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:20,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:21,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:36:21,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:21,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:21,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:21,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:21,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:36:21,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-12 18:36:21,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:36:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:21,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:36:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:21,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:36:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:21,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 18:36:21,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:36:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:21,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:21,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:21,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:21,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:36:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:21,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:21,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:21,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:21,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:21,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:36:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:21,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:21,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:21,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:21,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:36:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:21,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:21,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:36:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:21,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:21,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:21,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:21,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:21,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:21,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:21,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954225315] [2020-10-12 18:36:21,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:21,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:36:21,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974579611] [2020-10-12 18:36:21,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:36:21,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:21,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:36:21,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:36:21,797 INFO L87 Difference]: Start difference. First operand 336 states and 579 transitions. Second operand 13 states. [2020-10-12 18:36:24,132 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:36:24,534 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:36:25,011 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:36:25,366 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:36:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:28,281 INFO L93 Difference]: Finished difference Result 506 states and 847 transitions. [2020-10-12 18:36:28,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:36:28,282 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-12 18:36:28,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:28,287 INFO L225 Difference]: With dead ends: 506 [2020-10-12 18:36:28,287 INFO L226 Difference]: Without dead ends: 368 [2020-10-12 18:36:28,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:36:28,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-12 18:36:28,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-12 18:36:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-12 18:36:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2020-10-12 18:36:28,357 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 104 [2020-10-12 18:36:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:28,358 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2020-10-12 18:36:28,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:36:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2020-10-12 18:36:28,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 18:36:28,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:28,360 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] [2020-10-12 18:36:28,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:36:28,361 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:28,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:28,361 INFO L82 PathProgramCache]: Analyzing trace with hash -348312971, now seen corresponding path program 1 times [2020-10-12 18:36:28,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:28,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672280003] [2020-10-12 18:36:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:28,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:30,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:30,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:33,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:33,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 18:36:33,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:36:33,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 18:36:33,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:33,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:36:33,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:36:33,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:36:33,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:33,834 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:33,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:33,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:33,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:33,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:33,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:33,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:36:33,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:33,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:36:33,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:33,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:36:34,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-12 18:36:34,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:36:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 18:36:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:36:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:34,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:34,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:34,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:36:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:34,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:36:34,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:34,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:36:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:34,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:36:34,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:34,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:36:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:34,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:36:34,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:34,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:36:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:34,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:36:34,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:36:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:34,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:34,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:36:34,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:34,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672280003] [2020-10-12 18:36:34,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:34,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:36:34,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021282856] [2020-10-12 18:36:34,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:36:34,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:34,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:36:34,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:36:34,754 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand 16 states. [2020-10-12 18:36:35,164 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:36:36,945 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:37,278 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:36:37,650 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:36:37,902 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:36:38,405 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:36:38,784 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:36:38,922 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:36:39,846 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:36:40,115 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:36:41,128 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:36:42,686 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:36:43,071 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:36:43,451 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:36:43,817 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:36:45,082 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:36:45,385 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:36:45,662 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:36:47,088 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:36:47,371 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:36:47,523 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:36:47,690 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:36:47,850 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:36:48,160 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:36:49,251 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:36:50,834 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:36:50,999 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:36:51,280 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:36:53,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:53,049 INFO L93 Difference]: Finished difference Result 1821 states and 2903 transitions. [2020-10-12 18:36:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 18:36:53,049 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 145 [2020-10-12 18:36:53,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:53,063 INFO L225 Difference]: With dead ends: 1821 [2020-10-12 18:36:53,063 INFO L226 Difference]: Without dead ends: 1689 [2020-10-12 18:36:53,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1891 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=1206, Invalid=4646, Unknown=0, NotChecked=0, Total=5852 [2020-10-12 18:36:53,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2020-10-12 18:36:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1367. [2020-10-12 18:36:53,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-10-12 18:36:53,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 2198 transitions. [2020-10-12 18:36:53,198 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 2198 transitions. Word has length 145 [2020-10-12 18:36:53,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:53,199 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 2198 transitions. [2020-10-12 18:36:53,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:36:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 2198 transitions. [2020-10-12 18:36:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 18:36:53,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:53,203 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] [2020-10-12 18:36:53,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:36:53,203 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:53,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:53,204 INFO L82 PathProgramCache]: Analyzing trace with hash -893995987, now seen corresponding path program 1 times [2020-10-12 18:36:53,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:53,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327812370] [2020-10-12 18:36:53,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:54,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:58,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:58,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:36:58,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:36:58,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-12 18:36:58,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:36:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:36:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:36:58,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:58,700 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:58,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:58,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:58,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:58,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:58,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:58,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:36:58,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:58,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:58,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:58,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:36:58,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:58,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 18:36:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 18:36:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:58,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:36:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:58,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:58,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:58,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:58,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:36:58,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:58,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:36:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:58,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:58,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:58,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:58,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:36:58,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:59,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:36:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:59,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:59,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:59,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:59,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:36:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:59,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:36:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:59,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:59,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:59,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:36:59,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:36:59,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:36:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:59,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:59,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:59,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:59,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:36:59,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:36:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:36:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:59,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:59,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:36:59,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:36:59,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:36:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:36:59,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:59,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327812370] [2020-10-12 18:36:59,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:59,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:36:59,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543768885] [2020-10-12 18:36:59,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:36:59,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:59,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:36:59,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:36:59,222 INFO L87 Difference]: Start difference. First operand 1367 states and 2198 transitions. Second operand 11 states. [2020-10-12 18:36:59,543 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:37:01,562 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:03,919 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:37:05,593 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:05,937 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:37:06,872 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:07,039 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:37:07,239 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:37:10,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:10,605 INFO L93 Difference]: Finished difference Result 5369 states and 8552 transitions. [2020-10-12 18:37:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:37:10,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2020-10-12 18:37:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:10,630 INFO L225 Difference]: With dead ends: 5369 [2020-10-12 18:37:10,630 INFO L226 Difference]: Without dead ends: 4206 [2020-10-12 18:37:10,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:37:10,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2020-10-12 18:37:10,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3389. [2020-10-12 18:37:10,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3389 states. [2020-10-12 18:37:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 5437 transitions. [2020-10-12 18:37:10,931 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 5437 transitions. Word has length 146 [2020-10-12 18:37:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:10,933 INFO L479 AbstractCegarLoop]: Abstraction has 3389 states and 5437 transitions. [2020-10-12 18:37:10,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:37:10,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 5437 transitions. [2020-10-12 18:37:10,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 18:37:10,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:10,944 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] [2020-10-12 18:37:10,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:37:10,944 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:10,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:10,945 INFO L82 PathProgramCache]: Analyzing trace with hash -681985236, now seen corresponding path program 1 times [2020-10-12 18:37:10,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:10,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098581288] [2020-10-12 18:37:10,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:11,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:11,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:11,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:12,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:12,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:16,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:16,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-12 18:37:16,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:37:16,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:37:16,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 18:37:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:37:16,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:37:16,552 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:16,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:16,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:16,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:16,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:16,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:37:16,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:16,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:37:16,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:16,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:16,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:16,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:37:16,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:16,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 18:37:16,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 18:37:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:16,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:37:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:16,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:16,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:16,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:16,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:16,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:16,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:16,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:16,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:37:16,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:37:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:16,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:16,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:16,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:16,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:16,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:37:16,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:37:16,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:37:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:16,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:16,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:16,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:16,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:16,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:37:16,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:16,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:16,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:37:17,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:37:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:17,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:17,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:17,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:17,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:17,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:37:17,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:17,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:17,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:17,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:17,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:17,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:37:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:17,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:17,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:17,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:17,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:17,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:37:17,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:17,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:17,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:17,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:17,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:17,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:37:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:17,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:17,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:17,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:17,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:17,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:17,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:17,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:37:17,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:37:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:17,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:17,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098581288] [2020-10-12 18:37:17,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:17,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:37:17,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730644907] [2020-10-12 18:37:17,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:37:17,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:17,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:37:17,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:37:17,234 INFO L87 Difference]: Start difference. First operand 3389 states and 5437 transitions. Second operand 11 states. [2020-10-12 18:37:17,583 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:19,546 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:20,294 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2020-10-12 18:37:22,912 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:37:23,215 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:24,266 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:37:24,778 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:37:25,155 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2020-10-12 18:37:25,303 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:37:25,568 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 115 [2020-10-12 18:37:26,171 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:37:26,378 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:37:26,554 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:37:27,269 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:37:27,474 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:37:28,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:28,464 INFO L93 Difference]: Finished difference Result 15646 states and 24831 transitions. [2020-10-12 18:37:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:37:28,465 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2020-10-12 18:37:28,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:28,559 INFO L225 Difference]: With dead ends: 15646 [2020-10-12 18:37:28,560 INFO L226 Difference]: Without dead ends: 12461 [2020-10-12 18:37:28,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:37:28,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12461 states. [2020-10-12 18:37:29,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12461 to 9960. [2020-10-12 18:37:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9960 states. [2020-10-12 18:37:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9960 states to 9960 states and 15924 transitions. [2020-10-12 18:37:29,478 INFO L78 Accepts]: Start accepts. Automaton has 9960 states and 15924 transitions. Word has length 147 [2020-10-12 18:37:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:29,479 INFO L479 AbstractCegarLoop]: Abstraction has 9960 states and 15924 transitions. [2020-10-12 18:37:29,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:37:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9960 states and 15924 transitions. [2020-10-12 18:37:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 18:37:29,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:29,483 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] [2020-10-12 18:37:29,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:37:29,484 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:29,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:29,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1543695812, now seen corresponding path program 1 times [2020-10-12 18:37:29,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:29,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288424069] [2020-10-12 18:37:29,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:29,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:30,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:34,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 18:37:34,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:37:34,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 18:37:34,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:34,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-12 18:37:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:37:34,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:34,933 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:34,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:34,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:34,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:34,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:34,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:37:34,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:34,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:34,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:35,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:37:35,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:35,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 18:37:35,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:35,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:37:35,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:35,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:37:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:35,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:35,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:35,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:35,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:37:35,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:35,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:37:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:35,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:35,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:35,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:35,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:35,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:35,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:35,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:35,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:37:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:35,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:35,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:35,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:35,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:35,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:37:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:35,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:35,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:35,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:35,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:37:35,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:35,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:35,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:37:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:35,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:35,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:35,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:35,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:35,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:37:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:35,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:35,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:35,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:35,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:35,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:35,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:37:35,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:37:35,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:35,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:35,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288424069] [2020-10-12 18:37:35,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:35,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:37:35,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928312372] [2020-10-12 18:37:35,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:37:35,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:35,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:37:35,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:37:35,351 INFO L87 Difference]: Start difference. First operand 9960 states and 15924 transitions. Second operand 11 states. [2020-10-12 18:37:35,795 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:37:37,614 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:38,609 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:37:40,736 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:37:41,061 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:44,326 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:37:44,489 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:46,682 INFO L93 Difference]: Finished difference Result 54019 states and 85417 transitions. [2020-10-12 18:37:46,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:37:46,683 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2020-10-12 18:37:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:46,866 INFO L225 Difference]: With dead ends: 54019 [2020-10-12 18:37:46,866 INFO L226 Difference]: Without dead ends: 44263 [2020-10-12 18:37:46,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:37:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44263 states. [2020-10-12 18:37:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44263 to 35282. [2020-10-12 18:37:49,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35282 states. [2020-10-12 18:37:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35282 states to 35282 states and 56225 transitions. [2020-10-12 18:37:49,697 INFO L78 Accepts]: Start accepts. Automaton has 35282 states and 56225 transitions. Word has length 148 [2020-10-12 18:37:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:49,698 INFO L479 AbstractCegarLoop]: Abstraction has 35282 states and 56225 transitions. [2020-10-12 18:37:49,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:37:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 35282 states and 56225 transitions. [2020-10-12 18:37:49,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 18:37:49,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:49,706 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] [2020-10-12 18:37:49,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:37:49,707 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:49,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:49,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1768646627, now seen corresponding path program 1 times [2020-10-12 18:37:49,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:49,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245072936] [2020-10-12 18:37:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:49,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:49,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:50,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:50,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:54,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:54,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:37:54,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:37:54,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:37:54,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:54,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:54,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-12 18:37:54,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:37:54,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,209 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:55,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:55,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:37:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:55,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:37:55,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:37:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:55,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:37:55,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:55,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:55,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:55,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:37:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:55,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:55,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:55,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:37:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:55,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:55,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:55,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:37:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:37:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:55,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:37:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:55,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:55,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:55,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:37:55,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:55,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:37:55,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:55,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245072936] [2020-10-12 18:37:55,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:55,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:37:55,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268286508] [2020-10-12 18:37:55,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:37:55,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:55,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:37:55,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:37:55,575 INFO L87 Difference]: Start difference. First operand 35282 states and 56225 transitions. Second operand 11 states. [2020-10-12 18:37:55,899 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:57,551 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:59,749 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:00,070 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:04,975 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:05,180 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:05,606 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:09,629 INFO L93 Difference]: Finished difference Result 229374 states and 362427 transitions. [2020-10-12 18:38:09,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:38:09,629 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2020-10-12 18:38:09,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:12,349 INFO L225 Difference]: With dead ends: 229374 [2020-10-12 18:38:12,349 INFO L226 Difference]: Without dead ends: 194296 [2020-10-12 18:38:12,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:38:12,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194296 states. [2020-10-12 18:38:18,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194296 to 154652. [2020-10-12 18:38:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154652 states. [2020-10-12 18:38:18,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154652 states to 154652 states and 246632 transitions. [2020-10-12 18:38:18,750 INFO L78 Accepts]: Start accepts. Automaton has 154652 states and 246632 transitions. Word has length 149 [2020-10-12 18:38:18,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:18,751 INFO L479 AbstractCegarLoop]: Abstraction has 154652 states and 246632 transitions. [2020-10-12 18:38:18,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:38:18,751 INFO L276 IsEmpty]: Start isEmpty. Operand 154652 states and 246632 transitions. [2020-10-12 18:38:18,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:38:18,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:18,758 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] [2020-10-12 18:38:18,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:38:18,758 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:18,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:18,758 INFO L82 PathProgramCache]: Analyzing trace with hash 815109716, now seen corresponding path program 1 times [2020-10-12 18:38:18,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:18,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697889027] [2020-10-12 18:38:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:18,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:18,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:18,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:19,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:19,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:19,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:23,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:23,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:23,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-12 18:38:23,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:38:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 18:38:23,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:38:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 18:38:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 18:38:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:24,196 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:24,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:26,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:38:26,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:26,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:38:26,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 18:38:26,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 18:38:26,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:26,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:38:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:26,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:38:26,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:26,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:38:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:38:26,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:38:26,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 18:38:26,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:26,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:26,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:38:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:26,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:38:26,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:26,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:26,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:26,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:26,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:38:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:26,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:38:26,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:26,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:38:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:26,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:38:26,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:26,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:26,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:38:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:26,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:38:26,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:27,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697889027] [2020-10-12 18:38:27,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:27,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:38:27,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865531643] [2020-10-12 18:38:27,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:38:27,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:27,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:38:27,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:38:27,034 INFO L87 Difference]: Start difference. First operand 154652 states and 246632 transitions. Second operand 17 states. [2020-10-12 18:38:27,411 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:38:29,405 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:29,748 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:30,097 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:30,337 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:30,692 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:31,012 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:31,480 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:33,614 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:38:33,963 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:38:34,291 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:35,515 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:36,936 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:37,110 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:38,453 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:39,975 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:40,283 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:44,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:44,727 INFO L93 Difference]: Finished difference Result 262327 states and 415131 transitions. [2020-10-12 18:38:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-12 18:38:44,729 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 151 [2020-10-12 18:38:44,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:45,347 INFO L225 Difference]: With dead ends: 262327 [2020-10-12 18:38:45,348 INFO L226 Difference]: Without dead ends: 199639 [2020-10-12 18:38:45,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1229 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=879, Invalid=3281, Unknown=0, NotChecked=0, Total=4160 [2020-10-12 18:38:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199639 states. [2020-10-12 18:38:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199639 to 148463. [2020-10-12 18:38:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148463 states. [2020-10-12 18:38:53,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148463 states to 148463 states and 236028 transitions. [2020-10-12 18:38:53,674 INFO L78 Accepts]: Start accepts. Automaton has 148463 states and 236028 transitions. Word has length 151 [2020-10-12 18:38:53,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:53,675 INFO L479 AbstractCegarLoop]: Abstraction has 148463 states and 236028 transitions. [2020-10-12 18:38:53,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:38:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 148463 states and 236028 transitions. [2020-10-12 18:38:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:38:53,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:53,681 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] [2020-10-12 18:38:53,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:38:53,681 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:53,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:53,682 INFO L82 PathProgramCache]: Analyzing trace with hash -789980940, now seen corresponding path program 1 times [2020-10-12 18:38:53,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:53,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443169179] [2020-10-12 18:38:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:53,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:53,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:54,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:57,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:57,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:58,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:58,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:58,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:58,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:58,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-12 18:38:58,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:38:58,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 18:38:58,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:38:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:38:58,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 18:38:58,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,094 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:59,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:38:59,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:59,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 18:38:59,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:59,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 18:38:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:38:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:59,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:59,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:38:59,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:59,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:38:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:59,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:38:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:59,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:59,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:59,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:38:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:59,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:59,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:38:59,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:59,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:38:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:38:59,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:38:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 18:38:59,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:59,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:38:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:59,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:59,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:59,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:59,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:38:59,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:59,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443169179] [2020-10-12 18:38:59,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:59,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:38:59,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973131824] [2020-10-12 18:38:59,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:38:59,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:59,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:38:59,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:38:59,589 INFO L87 Difference]: Start difference. First operand 148463 states and 236028 transitions. Second operand 16 states. [2020-10-12 18:39:00,289 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-10-12 18:39:02,539 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:02,865 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:03,235 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:03,598 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-12 18:39:04,147 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-12 18:39:04,575 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:05,044 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-12 18:39:05,884 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:06,496 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 18:39:06,658 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:39:06,799 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:07,635 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:39:08,234 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:08,380 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:39:08,530 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:39:09,490 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 18:39:09,855 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:39:10,548 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:11,316 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:39:11,483 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:11,914 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:12,132 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:12,663 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:13,029 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:39:13,189 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:13,695 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:14,441 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:39:14,612 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:15,012 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:15,558 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:15,741 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:20,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:20,537 INFO L93 Difference]: Finished difference Result 266972 states and 421478 transitions. [2020-10-12 18:39:20,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-12 18:39:20,543 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 151 [2020-10-12 18:39:20,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:20,973 INFO L225 Difference]: With dead ends: 266972 [2020-10-12 18:39:20,973 INFO L226 Difference]: Without dead ends: 196646 [2020-10-12 18:39:21,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1228 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=905, Invalid=3517, Unknown=0, NotChecked=0, Total=4422 [2020-10-12 18:39:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196646 states. [2020-10-12 18:39:26,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196646 to 155460. [2020-10-12 18:39:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155460 states. [2020-10-12 18:39:26,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155460 states to 155460 states and 247846 transitions. [2020-10-12 18:39:26,843 INFO L78 Accepts]: Start accepts. Automaton has 155460 states and 247846 transitions. Word has length 151 [2020-10-12 18:39:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:26,844 INFO L479 AbstractCegarLoop]: Abstraction has 155460 states and 247846 transitions. [2020-10-12 18:39:26,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:39:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 155460 states and 247846 transitions. [2020-10-12 18:39:26,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:39:26,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:26,850 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] [2020-10-12 18:39:26,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:39:26,850 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:26,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1644470309, now seen corresponding path program 1 times [2020-10-12 18:39:26,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:26,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302525765] [2020-10-12 18:39:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:26,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:27,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:27,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:31,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:31,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-12 18:39:31,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:39:31,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:39:31,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 18:39:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 18:39:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,277 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:32,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:39:32,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:32,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:39:32,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 18:39:32,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:39:32,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:39:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:39:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:39:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:32,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:39:32,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:32,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:39:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:32,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:32,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:39:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:32,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:32,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:32,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:32,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:39:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:32,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:32,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:39:32,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:32,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:32,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:32,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:39:32,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:32,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:39:32,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302525765] [2020-10-12 18:39:32,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:32,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:39:32,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679200806] [2020-10-12 18:39:32,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:39:32,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:32,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:39:32,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:39:32,670 INFO L87 Difference]: Start difference. First operand 155460 states and 247846 transitions. Second operand 10 states. [2020-10-12 18:39:33,060 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:35,104 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:35,414 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:39:36,026 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:39:36,675 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:39:37,734 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:39:38,263 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:38,444 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121