/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SHALLOWEST --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 language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:41:23,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:41:23,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:41:23,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:41:23,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:41:23,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:41:23,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:41:23,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:41:23,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:41:23,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:41:23,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:41:23,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:41:23,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:41:23,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:41:23,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:41:23,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:41:23,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:41:23,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:41:23,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:41:23,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:41:23,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:41:23,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:41:23,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:41:23,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:41:23,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:41:23,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:41:23,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:41:23,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:41:23,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:41:23,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:41:23,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:41:23,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:41:23,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:41:23,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:41:23,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:41:23,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:41:23,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:41:23,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:41:23,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:41:23,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:41:23,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:41:23,258 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 [2020-10-27 04:41:23,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:41:23,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:41:23,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:41:23,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:41:23,289 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:41:23,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:41:23,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:41:23,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:41:23,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:41:23,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:41:23,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:41:23,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:41:23,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:41:23,291 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:41:23,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:41:23,292 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:41:23,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:41:23,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:41:23,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:41:23,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:41:23,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:41:23,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:41:23,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:41:23,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:41:23,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:41:23,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:41:23,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:41:23,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:41:23,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:41:23,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:41:23,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:41:23,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:41:23,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:41:23,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:41:23,736 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:41:23,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:41:23,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1578bb58/38db6ac1b1644a34ad4bf7144872dfba/FLAG7cfdf3613 [2020-10-27 04:41:24,540 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:41:24,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:41:24,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1578bb58/38db6ac1b1644a34ad4bf7144872dfba/FLAG7cfdf3613 [2020-10-27 04:41:24,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1578bb58/38db6ac1b1644a34ad4bf7144872dfba [2020-10-27 04:41:24,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:41:24,843 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:41:24,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:41:24,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:41:24,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:41:24,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:41:24" (1/1) ... [2020-10-27 04:41:24,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e558f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:24, skipping insertion in model container [2020-10-27 04:41:24,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:41:24" (1/1) ... [2020-10-27 04:41:24,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:41:24,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:41:25,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:41:25,311 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:41:25,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:41:25,480 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:41:25,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25 WrapperNode [2020-10-27 04:41:25,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:41:25,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:41:25,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:41:25,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:41:25,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (1/1) ... [2020-10-27 04:41:25,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (1/1) ... [2020-10-27 04:41:25,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (1/1) ... [2020-10-27 04:41:25,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (1/1) ... [2020-10-27 04:41:25,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (1/1) ... [2020-10-27 04:41:25,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (1/1) ... [2020-10-27 04:41:25,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (1/1) ... [2020-10-27 04:41:25,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:41:25,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:41:25,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:41:25,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:41:25,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (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 [2020-10-27 04:41:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:41:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:41:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:41:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 04:41:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:41:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:41:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:41:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 04:41:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:41:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:41:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:41:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 04:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 04:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 04:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:41:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:41:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:41:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:41:27,386 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:41:27,387 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:41:27,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:41:27 BoogieIcfgContainer [2020-10-27 04:41:27,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:41:27,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:41:27,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:41:27,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:41:27,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:41:24" (1/3) ... [2020-10-27 04:41:27,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625b415d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:41:27, skipping insertion in model container [2020-10-27 04:41:27,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:25" (2/3) ... [2020-10-27 04:41:27,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625b415d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:41:27, skipping insertion in model container [2020-10-27 04:41:27,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:41:27" (3/3) ... [2020-10-27 04:41:27,403 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:41:27,417 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:41:27,423 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:41:27,438 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:41:27,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:41:27,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:41:27,487 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:41:27,487 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:41:27,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:41:27,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:41:27,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:41:27,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:41:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-10-27 04:41:27,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:41:27,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:41:27,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:41:27,533 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:41:27,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:41:27,540 INFO L82 PathProgramCache]: Analyzing trace with hash -516337600, now seen corresponding path program 1 times [2020-10-27 04:41:27,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:41:27,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840626255] [2020-10-27 04:41:27,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:41:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:28,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:28,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:28,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:41:28,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:28,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771 [2020-10-27 04:41:28,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 04:41:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:41:29,501 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:41:29,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:41:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:29,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:29,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:29,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:41:29,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 04:41:29,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:29,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:29,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:41:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:29,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 04:41:29,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 04:41:29,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:29,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:41:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:29,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:29,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:29,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:41:29,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:41:29,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:41:29,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:29,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:29,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 04:41:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:29,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:29,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:29,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:29,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:29,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:41:29,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:29,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:29,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:41:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:29,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:29,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:29,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:29,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:29,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:41:29,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:29,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:29,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:29,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:29,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:29,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:41:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:29,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:29,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:29,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:29,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:41:29,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:29,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 04:41:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:30,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:30,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:30,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:30,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:30,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:41:30,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:30,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:30,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:30,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:30,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:30,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 04:41:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:30,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:30,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:30,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:41:30,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:30,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:41:30,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:41:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:30,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:41:30,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840626255] [2020-10-27 04:41:30,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:41:30,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 04:41:30,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940553915] [2020-10-27 04:41:30,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 04:41:30,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:41:30,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 04:41:30,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 04:41:30,108 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 7 states. [2020-10-27 04:41:31,308 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:31,967 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:32,622 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:33,213 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:41:33,890 INFO L93 Difference]: Finished difference Result 553 states and 925 transitions. [2020-10-27 04:41:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:41:33,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-27 04:41:33,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:41:33,910 INFO L225 Difference]: With dead ends: 553 [2020-10-27 04:41:33,910 INFO L226 Difference]: Without dead ends: 389 [2020-10-27 04:41:33,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:41:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-27 04:41:34,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 349. [2020-10-27 04:41:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-10-27 04:41:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 596 transitions. [2020-10-27 04:41:34,043 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 596 transitions. Word has length 109 [2020-10-27 04:41:34,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:41:34,044 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 596 transitions. [2020-10-27 04:41:34,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 04:41:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 596 transitions. [2020-10-27 04:41:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:41:34,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:41:34,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:41:34,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:41:34,052 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:41:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:41:34,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1411935102, now seen corresponding path program 1 times [2020-10-27 04:41:34,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:41:34,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778754157] [2020-10-27 04:41:34,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:41:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:34,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:35,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:35,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:41:35,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1647 [2020-10-27 04:41:35,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:41:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 04:41:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:41:35,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:36,477 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:41:36,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:41:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:36,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:36,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:41:36,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:36,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 04:41:36,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:36,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:41:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:36,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:36,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:36,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 04:41:36,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:36,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-27 04:41:36,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:41:36,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:36,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 04:41:36,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:36,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:41:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:36,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:36,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:36,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:41:36,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:36,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:41:36,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:41:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:41:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:41:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 04:41:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:37,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:37,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:37,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:37,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:37,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:41:37,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:41:37,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:41:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:37,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:37,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:37,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:37,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:37,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:41:37,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:37,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:41:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:37,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:37,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:37,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:37,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:37,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:41:37,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:37,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 04:41:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:37,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:37,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:37,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:37,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:41:37,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 04:41:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:37,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:37,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:37,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:41:37,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:37,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:41:37,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:41:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:37,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:41:37,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778754157] [2020-10-27 04:41:37,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:41:37,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 04:41:37,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866008142] [2020-10-27 04:41:37,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:41:37,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:41:37,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:41:37,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:41:37,350 INFO L87 Difference]: Start difference. First operand 349 states and 596 transitions. Second operand 13 states. [2020-10-27 04:41:40,512 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 04:41:41,219 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 04:41:41,968 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 04:41:42,622 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-27 04:41:43,391 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:43,983 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:44,602 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:45,250 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:46,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:41:46,084 INFO L93 Difference]: Finished difference Result 548 states and 913 transitions. [2020-10-27 04:41:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:41:46,085 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 04:41:46,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:41:46,097 INFO L225 Difference]: With dead ends: 548 [2020-10-27 04:41:46,098 INFO L226 Difference]: Without dead ends: 389 [2020-10-27 04:41:46,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:41:46,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-27 04:41:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 349. [2020-10-27 04:41:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-10-27 04:41:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 562 transitions. [2020-10-27 04:41:46,178 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 562 transitions. Word has length 109 [2020-10-27 04:41:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:41:46,179 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 562 transitions. [2020-10-27 04:41:46,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:41:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 562 transitions. [2020-10-27 04:41:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 04:41:46,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:41:46,185 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] [2020-10-27 04:41:46,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:41:46,186 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:41:46,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:41:46,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1879232371, now seen corresponding path program 1 times [2020-10-27 04:41:46,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:41:46,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110433481] [2020-10-27 04:41:46,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:41:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:46,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:46,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:46,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:47,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:51,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:51,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 04:41:51,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:41:51,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-27 04:41:51,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:41:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 04:41:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:41:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:41:51,972 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:41:51,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:41:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:51,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:41:52,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:41:52,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:52,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:52,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:52,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:41:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:52,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:41:52,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-27 04:41:52,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:41:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:41:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:41:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:52,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:41:52,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:41:52,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:41:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:41:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:41:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:52,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:52,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 04:41:52,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:41:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:41:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:41:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 04:41:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:52,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:52,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:41:52,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:52,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:41:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:52,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:52,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:41:52,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:52,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:52,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 04:41:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:52,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:52,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:41:52,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 04:41:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:52,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:52,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:52,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:41:52,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:52,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:41:52,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:41:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:52,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:52,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:41:52,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110433481] [2020-10-27 04:41:52,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:41:52,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:41:52,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17275644] [2020-10-27 04:41:52,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:41:52,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:41:52,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:41:52,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:41:52,570 INFO L87 Difference]: Start difference. First operand 349 states and 562 transitions. Second operand 10 states. [2020-10-27 04:41:53,264 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:41:55,706 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:55,998 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:41:56,415 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:41:56,797 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:57,239 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:41:57,669 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:58,115 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:41:58,550 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:59,828 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:42:00,297 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 04:42:00,483 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 04:42:00,762 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:42:00,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:00,872 INFO L93 Difference]: Finished difference Result 745 states and 1197 transitions. [2020-10-27 04:42:00,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:42:00,873 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-27 04:42:00,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:00,879 INFO L225 Difference]: With dead ends: 745 [2020-10-27 04:42:00,879 INFO L226 Difference]: Without dead ends: 592 [2020-10-27 04:42:00,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:42:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-10-27 04:42:00,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 502. [2020-10-27 04:42:00,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-10-27 04:42:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 802 transitions. [2020-10-27 04:42:00,960 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 802 transitions. Word has length 142 [2020-10-27 04:42:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:00,960 INFO L481 AbstractCegarLoop]: Abstraction has 502 states and 802 transitions. [2020-10-27 04:42:00,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:42:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 802 transitions. [2020-10-27 04:42:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-27 04:42:00,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:00,966 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] [2020-10-27 04:42:00,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:42:00,967 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:00,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:00,967 INFO L82 PathProgramCache]: Analyzing trace with hash 964472373, now seen corresponding path program 1 times [2020-10-27 04:42:00,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:00,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421440037] [2020-10-27 04:42:00,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:01,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:01,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:01,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:01,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:02,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:06,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:06,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:42:06,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:42:06,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-27 04:42:06,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:42:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-27 04:42:06,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:06,855 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:06,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:06,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:06,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:06,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:06,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:42:06,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:06,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:06,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:07,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:07,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:42:07,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:07,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-27 04:42:07,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:42:07,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:42:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:07,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:07,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:07,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:07,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:07,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:42:07,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:07,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:07,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:07,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:07,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:07,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:42:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:07,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:07,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:07,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:42:07,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:07,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:42:07,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:07,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:42:07,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:07,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:07,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 04:42:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:07,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:07,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:07,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:07,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:07,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:42:07,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:07,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 04:42:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:07,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:07,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:07,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:07,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:07,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:42:07,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:07,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:07,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 04:42:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:07,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:07,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:07,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:07,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:07,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:07,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 04:42:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:07,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:07,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:07,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:07,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:42:07,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:42:07,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421440037] [2020-10-27 04:42:07,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:07,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:07,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135170144] [2020-10-27 04:42:07,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:07,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:07,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:07,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:07,518 INFO L87 Difference]: Start difference. First operand 502 states and 802 transitions. Second operand 10 states. [2020-10-27 04:42:08,309 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:08,980 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 04:42:09,658 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:10,337 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:42:13,951 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:14,368 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:14,662 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:15,464 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:15,704 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:16,503 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:16,845 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:17,690 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:18,055 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:19,536 INFO L93 Difference]: Finished difference Result 1619 states and 2600 transitions. [2020-10-27 04:42:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:42:19,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-27 04:42:19,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:19,548 INFO L225 Difference]: With dead ends: 1619 [2020-10-27 04:42:19,549 INFO L226 Difference]: Without dead ends: 1132 [2020-10-27 04:42:19,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:42:19,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2020-10-27 04:42:19,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 979. [2020-10-27 04:42:19,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2020-10-27 04:42:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1547 transitions. [2020-10-27 04:42:19,665 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1547 transitions. Word has length 145 [2020-10-27 04:42:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:19,666 INFO L481 AbstractCegarLoop]: Abstraction has 979 states and 1547 transitions. [2020-10-27 04:42:19,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:42:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1547 transitions. [2020-10-27 04:42:19,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 04:42:19,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:19,671 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] [2020-10-27 04:42:19,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:42:19,671 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:19,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:19,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1572711540, now seen corresponding path program 1 times [2020-10-27 04:42:19,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:19,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878230809] [2020-10-27 04:42:19,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:19,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:19,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:24,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:24,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 04:42:24,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:42:24,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-27 04:42:24,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:24,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:24,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:42:24,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:42:24,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:25,456 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:25,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:25,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:25,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:25,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:25,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:25,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:42:25,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:25,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:25,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:25,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:25,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:42:25,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-27 04:42:25,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 04:42:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:25,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:42:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:25,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:25,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:25,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:25,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:25,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:25,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:42:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:25,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:25,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:25,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 04:42:25,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:42:25,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:42:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:42:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:25,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 04:42:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:25,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:25,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:25,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:25,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:42:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-27 04:42:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:26,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:26,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:26,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:26,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:26,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:26,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:26,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:42:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:26,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:26,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:26,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:26,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:42:26,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:26,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:26,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 04:42:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:26,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:26,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:26,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:26,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:26,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:26,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:42:26,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878230809] [2020-10-27 04:42:26,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:26,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:26,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158089114] [2020-10-27 04:42:26,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:26,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:26,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:26,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:26,284 INFO L87 Difference]: Start difference. First operand 979 states and 1547 transitions. Second operand 10 states. [2020-10-27 04:42:26,916 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:27,572 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 04:42:28,242 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:42:28,879 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:32,641 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:33,082 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:33,386 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:34,227 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:34,485 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:35,347 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:35,724 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:36,583 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:36,974 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:38,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:38,511 INFO L93 Difference]: Finished difference Result 3154 states and 5006 transitions. [2020-10-27 04:42:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:42:38,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-10-27 04:42:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:38,525 INFO L225 Difference]: With dead ends: 3154 [2020-10-27 04:42:38,525 INFO L226 Difference]: Without dead ends: 2200 [2020-10-27 04:42:38,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:42:38,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2020-10-27 04:42:38,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1915. [2020-10-27 04:42:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2020-10-27 04:42:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2991 transitions. [2020-10-27 04:42:38,723 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2991 transitions. Word has length 146 [2020-10-27 04:42:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:38,723 INFO L481 AbstractCegarLoop]: Abstraction has 1915 states and 2991 transitions. [2020-10-27 04:42:38,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:42:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2991 transitions. [2020-10-27 04:42:38,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 04:42:38,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:38,730 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] [2020-10-27 04:42:38,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:42:38,730 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:38,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:38,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2141650650, now seen corresponding path program 1 times [2020-10-27 04:42:38,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:38,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763440510] [2020-10-27 04:42:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:38,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:38,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:39,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:43,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-27 04:42:43,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:42:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 04:42:43,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:42:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 04:42:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:44,458 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:44,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:44,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:44,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:44,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:44,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:44,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:42:44,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:44,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:44,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:44,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:44,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:44,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:42:44,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:44,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 04:42:44,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:44,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:44,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:44,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:42:44,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:44,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:42:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:44,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:44,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:44,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:44,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:44,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:42:44,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:44,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:44,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:44,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:44,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:42:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:44,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:44,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:44,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 04:42:44,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:42:44,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:42:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:42:44,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:44,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:42:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:44,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:44,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:44,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:44,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:44,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:42:44,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:45,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 04:42:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:45,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:45,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:45,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:45,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:45,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:42:45,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:45,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:45,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 04:42:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:45,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:45,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:42:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:45,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:45,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-27 04:42:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:45,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:45,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:45,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:45,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:45,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:42:45,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:45,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:42:45,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763440510] [2020-10-27 04:42:45,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:45,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:45,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923398290] [2020-10-27 04:42:45,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:45,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:45,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:45,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:45,215 INFO L87 Difference]: Start difference. First operand 1915 states and 2991 transitions. Second operand 10 states. [2020-10-27 04:42:45,979 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:46,703 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2020-10-27 04:42:47,470 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:42:49,626 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2020-10-27 04:42:54,303 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:54,741 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:55,037 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:55,474 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:56,296 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:56,581 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:56,834 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:57,577 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:57,954 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:58,284 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:59,045 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:59,434 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:59,767 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:01,195 INFO L93 Difference]: Finished difference Result 7524 states and 11805 transitions. [2020-10-27 04:43:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:43:01,196 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 147 [2020-10-27 04:43:01,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:01,226 INFO L225 Difference]: With dead ends: 7524 [2020-10-27 04:43:01,226 INFO L226 Difference]: Without dead ends: 5721 [2020-10-27 04:43:01,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:43:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2020-10-27 04:43:01,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 5035. [2020-10-27 04:43:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5035 states. [2020-10-27 04:43:01,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 7817 transitions. [2020-10-27 04:43:01,836 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 7817 transitions. Word has length 147 [2020-10-27 04:43:01,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:01,836 INFO L481 AbstractCegarLoop]: Abstraction has 5035 states and 7817 transitions. [2020-10-27 04:43:01,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 7817 transitions. [2020-10-27 04:43:01,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 04:43:01,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:01,851 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] [2020-10-27 04:43:01,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:43:01,852 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:01,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:01,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1387100778, now seen corresponding path program 1 times [2020-10-27 04:43:01,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:01,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521996469] [2020-10-27 04:43:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:02,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:02,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:02,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:02,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 04:43:07,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:43:07,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-27 04:43:07,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:43:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 04:43:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 04:43:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,690 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:07,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:07,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:43:07,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 04:43:07,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:43:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:43:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:07,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:07,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:07,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:07,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:07,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:43:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:43:07,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:43:07,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:43:07,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 04:43:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:07,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:43:07,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:43:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:43:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:43:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:08,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 04:43:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:08,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:08,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:08,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:08,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:08,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:08,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:08,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:08,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 04:43:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:08,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:08,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:08,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:08,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 04:43:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:08,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:08,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:08,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:43:08,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521996469] [2020-10-27 04:43:08,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:08,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:08,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333084879] [2020-10-27 04:43:08,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:08,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:08,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:08,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:08,145 INFO L87 Difference]: Start difference. First operand 5035 states and 7817 transitions. Second operand 10 states. [2020-10-27 04:43:08,888 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:11,437 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:43:12,025 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:12,333 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:12,828 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:43:13,236 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:13,609 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:43:14,254 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:15,673 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:16,520 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:43:16,703 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:43:16,898 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 04:43:17,202 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:43:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:17,370 INFO L93 Difference]: Finished difference Result 12369 states and 19244 transitions. [2020-10-27 04:43:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:43:17,370 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-27 04:43:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:17,414 INFO L225 Difference]: With dead ends: 12369 [2020-10-27 04:43:17,414 INFO L226 Difference]: Without dead ends: 9438 [2020-10-27 04:43:17,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:43:17,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2020-10-27 04:43:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 7951. [2020-10-27 04:43:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7951 states. [2020-10-27 04:43:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7951 states to 7951 states and 12321 transitions. [2020-10-27 04:43:18,326 INFO L78 Accepts]: Start accepts. Automaton has 7951 states and 12321 transitions. Word has length 148 [2020-10-27 04:43:18,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:18,326 INFO L481 AbstractCegarLoop]: Abstraction has 7951 states and 12321 transitions. [2020-10-27 04:43:18,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:18,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7951 states and 12321 transitions. [2020-10-27 04:43:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 04:43:18,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:18,346 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] [2020-10-27 04:43:18,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:43:18,346 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:18,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:18,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1142907688, now seen corresponding path program 1 times [2020-10-27 04:43:18,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:18,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066290362] [2020-10-27 04:43:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:18,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:18,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:18,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:18,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:19,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:19,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:23,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:23,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-27 04:43:23,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:43:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 04:43:23,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:43:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-27 04:43:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,099 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:24,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:43:24,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:43:24,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 04:43:24,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:24,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:24,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:43:24,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:43:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:24,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:24,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:43:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:43:24,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:43:24,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:43:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 04:43:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:43:24,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:43:24,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:43:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:43:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 04:43:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:24,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:24,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 04:43:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:24,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:43:24,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:24,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 04:43:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:24,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:24,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:24,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:43:24,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066290362] [2020-10-27 04:43:24,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:24,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:24,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894860156] [2020-10-27 04:43:24,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:24,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:24,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:24,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:24,592 INFO L87 Difference]: Start difference. First operand 7951 states and 12321 transitions. Second operand 10 states. [2020-10-27 04:43:25,261 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:25,867 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 04:43:26,704 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:43:27,460 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:31,576 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:32,050 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:32,349 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:33,392 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:33,696 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:34,612 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:34,872 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:35,772 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:36,168 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:38,222 INFO L93 Difference]: Finished difference Result 25793 states and 40187 transitions. [2020-10-27 04:43:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:43:38,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-27 04:43:38,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:38,294 INFO L225 Difference]: With dead ends: 25793 [2020-10-27 04:43:38,294 INFO L226 Difference]: Without dead ends: 17982 [2020-10-27 04:43:38,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:43:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17982 states. [2020-10-27 04:43:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17982 to 15507. [2020-10-27 04:43:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15507 states. [2020-10-27 04:43:39,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15507 states to 15507 states and 23685 transitions. [2020-10-27 04:43:39,742 INFO L78 Accepts]: Start accepts. Automaton has 15507 states and 23685 transitions. Word has length 151 [2020-10-27 04:43:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:39,743 INFO L481 AbstractCegarLoop]: Abstraction has 15507 states and 23685 transitions. [2020-10-27 04:43:39,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 15507 states and 23685 transitions. [2020-10-27 04:43:39,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 04:43:39,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:39,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:43:39,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:43:39,774 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:39,775 INFO L82 PathProgramCache]: Analyzing trace with hash 294206030, now seen corresponding path program 1 times [2020-10-27 04:43:39,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:39,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973044763] [2020-10-27 04:43:39,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:39,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:39,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:40,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:40,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:40,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:40,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:42,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:42,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:42,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:44,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:44,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 04:43:44,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 04:43:44,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-27 04:43:44,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:43:44,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-27 04:43:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,490 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:45,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:45,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:43:45,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:43:45,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 04:43:45,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:45,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:45,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:43:45,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:43:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:45,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:45,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:43:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:43:45,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 04:43:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 04:43:45,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:43:45,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:45,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 04:43:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:45,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:43:45,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:45,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:45,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:45,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 04:43:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:45,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:45,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 04:43:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:45,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:45,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:45,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:43:45,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:45,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:45,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:43:46,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973044763] [2020-10-27 04:43:46,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:46,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:46,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587570995] [2020-10-27 04:43:46,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:46,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:46,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:46,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:46,028 INFO L87 Difference]: Start difference. First operand 15507 states and 23685 transitions. Second operand 10 states. [2020-10-27 04:43:46,682 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:47,372 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:43:48,233 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:43:49,507 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-27 04:43:55,990 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:56,487 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:56,720 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:57,190 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:58,141 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:58,365 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:58,814 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:59,535 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:59,767 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:00,383 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:00,943 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:01,198 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:01,811 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:44:04,268 INFO L93 Difference]: Finished difference Result 57757 states and 88527 transitions. [2020-10-27 04:44:04,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:44:04,270 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-27 04:44:04,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:44:04,435 INFO L225 Difference]: With dead ends: 57757 [2020-10-27 04:44:04,435 INFO L226 Difference]: Without dead ends: 43090 [2020-10-27 04:44:04,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:44:04,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43090 states. [2020-10-27 04:44:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43090 to 37622. [2020-10-27 04:44:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37622 states. [2020-10-27 04:44:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37622 states to 37622 states and 56863 transitions. [2020-10-27 04:44:07,898 INFO L78 Accepts]: Start accepts. Automaton has 37622 states and 56863 transitions. Word has length 152 [2020-10-27 04:44:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:44:07,898 INFO L481 AbstractCegarLoop]: Abstraction has 37622 states and 56863 transitions. [2020-10-27 04:44:07,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:44:07,898 INFO L276 IsEmpty]: Start isEmpty. Operand 37622 states and 56863 transitions. [2020-10-27 04:44:07,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 04:44:07,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:44:07,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:44:07,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:44:07,962 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:44:07,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:44:07,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1586244131, now seen corresponding path program 1 times [2020-10-27 04:44:07,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:44:07,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745366463] [2020-10-27 04:44:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:44:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:08,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:08,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:08,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:09,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:11,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:11,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:13,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-27 04:44:13,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:13,670 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:44:13,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:44:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:13,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:13,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:13,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:44:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:13,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:13,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:44:13,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:13,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:44:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:13,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:13,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:44:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:13,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:44:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:13,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:13,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:13,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:44:13,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:13,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:44:13,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:13,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:13,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:13,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:44:13,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:13,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 04:44:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:14,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:14,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:44:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:44:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:14,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 04:44:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:14,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:14,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:14,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:14,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:14,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:44:14,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:14,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:14,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 04:44:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:14,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:14,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:14,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:44:14,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745366463] [2020-10-27 04:44:14,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:44:14,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:44:14,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569130563] [2020-10-27 04:44:14,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:44:14,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:44:14,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:44:14,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:44:14,206 INFO L87 Difference]: Start difference. First operand 37622 states and 56863 transitions. Second operand 10 states. [2020-10-27 04:44:14,885 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:44:15,586 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:44:16,492 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:44:17,845 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-27 04:44:25,586 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:44:26,224 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:26,542 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:27,028 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:28,102 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:28,442 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:28,955 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:29,986 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:30,308 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:30,807 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:31,743 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:32,176 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:32,763 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:37,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:44:37,276 INFO L93 Difference]: Finished difference Result 136383 states and 207271 transitions. [2020-10-27 04:44:37,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:44:37,281 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-27 04:44:37,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:44:37,681 INFO L225 Difference]: With dead ends: 136383 [2020-10-27 04:44:37,681 INFO L226 Difference]: Without dead ends: 99604 [2020-10-27 04:44:38,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:44:38,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99604 states. [2020-10-27 04:44:45,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99604 to 87517. [2020-10-27 04:44:45,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87517 states. [2020-10-27 04:44:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87517 states to 87517 states and 131108 transitions. [2020-10-27 04:44:45,871 INFO L78 Accepts]: Start accepts. Automaton has 87517 states and 131108 transitions. Word has length 153 [2020-10-27 04:44:45,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:44:45,872 INFO L481 AbstractCegarLoop]: Abstraction has 87517 states and 131108 transitions. [2020-10-27 04:44:45,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:44:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 87517 states and 131108 transitions. [2020-10-27 04:44:45,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 04:44:45,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:44:45,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:44:45,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:44:45,966 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:44:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:44:45,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1943888045, now seen corresponding path program 1 times [2020-10-27 04:44:45,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:44:45,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126404766] [2020-10-27 04:44:45,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:44:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:46,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:46,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:46,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:46,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:47,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:47,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:47,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:51,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:51,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 04:44:51,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 04:44:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-27 04:44:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:44:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 04:44:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:44:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:51,714 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:44:51,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:44:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:51,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:44:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:51,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:51,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:51,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:44:51,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 04:44:51,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:44:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:44:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:51,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:44:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:51,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:44:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:51,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:51,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:51,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:44:51,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:51,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:44:51,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:44:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:51,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 04:44:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:51,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:51,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:51,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:44:51,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:44:51,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:44:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:52,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 04:44:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:52,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:52,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:52,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:52,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:52,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:44:52,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:52,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:44:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:44:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:44:52,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:52,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 04:44:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:52,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:52,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:52,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:52,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:52,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:44:52,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:52,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:52,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:52,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 04:44:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:52,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:52,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:52,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:44:52,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:52,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:44:52,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:52,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:44:52,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126404766] [2020-10-27 04:44:52,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:44:52,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:44:52,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132742194] [2020-10-27 04:44:52,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:44:52,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:44:52,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:44:52,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:44:52,187 INFO L87 Difference]: Start difference. First operand 87517 states and 131108 transitions. Second operand 10 states. [2020-10-27 04:44:52,929 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:44:57,541 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:44:58,340 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 122