/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 18:04:22,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 18:04:22,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 18:04:22,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 18:04:22,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 18:04:22,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 18:04:22,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 18:04:22,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 18:04:22,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 18:04:22,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 18:04:22,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 18:04:22,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 18:04:22,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 18:04:22,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 18:04:22,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 18:04:22,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 18:04:22,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 18:04:22,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 18:04:22,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 18:04:22,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 18:04:22,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 18:04:22,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 18:04:22,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 18:04:22,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 18:04:22,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 18:04:22,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 18:04:22,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 18:04:22,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 18:04:22,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 18:04:22,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 18:04:22,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 18:04:22,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 18:04:22,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 18:04:22,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 18:04:22,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 18:04:22,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 18:04:22,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 18:04:22,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 18:04:22,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 18:04:22,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 18:04:22,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 18:04:22,871 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 [2020-10-28 18:04:22,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 18:04:22,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 18:04:22,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 18:04:22,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 18:04:22,903 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 18:04:22,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 18:04:22,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 18:04:22,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 18:04:22,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 18:04:22,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 18:04:22,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 18:04:22,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 18:04:22,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 18:04:22,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 18:04:22,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 18:04:22,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 18:04:22,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 18:04:22,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 18:04:22,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 18:04:22,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 18:04:22,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 18:04:22,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 18:04:22,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 18:04:22,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 18:04:22,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 18:04:22,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 18:04:22,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 18:04:22,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 18:04:22,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 18:04:22,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 18:04:23,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 18:04:23,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 18:04:23,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 18:04:23,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 18:04:23,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 18:04:23,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2020-10-28 18:04:23,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29591b92c/78465b9ab3ab4eefb229903829f9a42e/FLAG30bee0d89 [2020-10-28 18:04:24,178 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 18:04:24,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2020-10-28 18:04:24,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29591b92c/78465b9ab3ab4eefb229903829f9a42e/FLAG30bee0d89 [2020-10-28 18:04:24,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29591b92c/78465b9ab3ab4eefb229903829f9a42e [2020-10-28 18:04:24,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 18:04:24,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 18:04:24,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 18:04:24,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 18:04:24,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 18:04:24,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:04:24" (1/1) ... [2020-10-28 18:04:24,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a406f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:24, skipping insertion in model container [2020-10-28 18:04:24,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:04:24" (1/1) ... [2020-10-28 18:04:24,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 18:04:24,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 18:04:24,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:04:24,870 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 18:04:25,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:04:25,033 INFO L208 MainTranslator]: Completed translation [2020-10-28 18:04:25,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25 WrapperNode [2020-10-28 18:04:25,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 18:04:25,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 18:04:25,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 18:04:25,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 18:04:25,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (1/1) ... [2020-10-28 18:04:25,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (1/1) ... [2020-10-28 18:04:25,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (1/1) ... [2020-10-28 18:04:25,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (1/1) ... [2020-10-28 18:04:25,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (1/1) ... [2020-10-28 18:04:25,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (1/1) ... [2020-10-28 18:04:25,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (1/1) ... [2020-10-28 18:04:25,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 18:04:25,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 18:04:25,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 18:04:25,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 18:04:25,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (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 [2020-10-28 18:04:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 18:04:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 18:04:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 18:04:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 18:04:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-10-28 18:04:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-10-28 18:04:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-10-28 18:04:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-10-28 18:04:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-10-28 18:04:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-10-28 18:04:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-10-28 18:04:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-10-28 18:04:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 18:04:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-10-28 18:04:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-10-28 18:04:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-10-28 18:04:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-10-28 18:04:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-10-28 18:04:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 18:04:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 18:04:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 18:04:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 18:04:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 18:04:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 18:04:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 18:04:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 18:04:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 18:04:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 18:04:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 18:04:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 18:04:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 18:04:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-10-28 18:04:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-10-28 18:04:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-10-28 18:04:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-10-28 18:04:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-10-28 18:04:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-10-28 18:04:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-10-28 18:04:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-10-28 18:04:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 18:04:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-10-28 18:04:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-10-28 18:04:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-10-28 18:04:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-10-28 18:04:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-10-28 18:04:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 18:04:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 18:04:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 18:04:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 18:04:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 18:04:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 18:04:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 18:04:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 18:04:26,145 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 18:04:26,145 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 18:04:26,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:04:26 BoogieIcfgContainer [2020-10-28 18:04:26,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 18:04:26,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 18:04:26,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 18:04:26,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 18:04:26,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 06:04:24" (1/3) ... [2020-10-28 18:04:26,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaf4a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:04:26, skipping insertion in model container [2020-10-28 18:04:26,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:25" (2/3) ... [2020-10-28 18:04:26,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaf4a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:04:26, skipping insertion in model container [2020-10-28 18:04:26,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:04:26" (3/3) ... [2020-10-28 18:04:26,163 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2020-10-28 18:04:26,182 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 18:04:26,188 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 18:04:26,202 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 18:04:26,252 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 18:04:26,253 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 18:04:26,253 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 18:04:26,254 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 18:04:26,254 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 18:04:26,254 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 18:04:26,255 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 18:04:26,255 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 18:04:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2020-10-28 18:04:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 18:04:26,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:04:26,314 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] [2020-10-28 18:04:26,315 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:04:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:04:26,328 INFO L82 PathProgramCache]: Analyzing trace with hash -316970878, now seen corresponding path program 1 times [2020-10-28 18:04:26,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:04:26,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803110876] [2020-10-28 18:04:26,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:04:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:26,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:26,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:27,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:27,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:27,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:27,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 18:04:28,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:04:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1364 [2020-10-28 18:04:28,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 18:04:28,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 18:04:28,355 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:04:28,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:04:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:28,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:28,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 18:04:28,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:04:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:28,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:28,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:28,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:28,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:04:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:28,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:04:28,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:28,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 18:04:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:04:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:04:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:04:28,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:28,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:28,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:28,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:04:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:28,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 18:04:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 18:04:28,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 18:04:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:28,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:04:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:28,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:04:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 18:04:28,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 18:04:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:28,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:28,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:28,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:28,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:28,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:28,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:28,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:28,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:28,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:04:28,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803110876] [2020-10-28 18:04:28,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:04:28,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 18:04:28,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987441439] [2020-10-28 18:04:28,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 18:04:28,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:04:28,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 18:04:28,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-28 18:04:28,738 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 9 states. [2020-10-28 18:04:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:04:30,729 INFO L93 Difference]: Finished difference Result 457 states and 703 transitions. [2020-10-28 18:04:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 18:04:30,731 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-28 18:04:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:04:30,745 INFO L225 Difference]: With dead ends: 457 [2020-10-28 18:04:30,745 INFO L226 Difference]: Without dead ends: 236 [2020-10-28 18:04:30,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-28 18:04:30,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-28 18:04:30,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-10-28 18:04:30,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-28 18:04:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 339 transitions. [2020-10-28 18:04:30,860 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 339 transitions. Word has length 72 [2020-10-28 18:04:30,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:04:30,861 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 339 transitions. [2020-10-28 18:04:30,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 18:04:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 339 transitions. [2020-10-28 18:04:30,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 18:04:30,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:04:30,870 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] [2020-10-28 18:04:30,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 18:04:30,872 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:04:30,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:04:30,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1512110854, now seen corresponding path program 1 times [2020-10-28 18:04:30,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:04:30,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337606278] [2020-10-28 18:04:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:04:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:30,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:31,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:32,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:32,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 18:04:32,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:04:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1939 [2020-10-28 18:04:32,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:32,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:04:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-28 18:04:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:04:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,269 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:04:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:04:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:33,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:04:33,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:04:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:33,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:04:33,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:04:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:33,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:33,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:04:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:04:33,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:04:33,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:33,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:33,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:04:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:33,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:04:33,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:33,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:33,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:04:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:33,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:04:33,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:33,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:33,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:33,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:33,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:33,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:33,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:04:33,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337606278] [2020-10-28 18:04:33,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:04:33,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 18:04:33,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628197287] [2020-10-28 18:04:33,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 18:04:33,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:04:33,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 18:04:33,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-28 18:04:33,665 INFO L87 Difference]: Start difference. First operand 236 states and 339 transitions. Second operand 11 states. [2020-10-28 18:04:34,050 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 18:04:35,219 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:04:35,492 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 18:04:37,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:04:37,110 INFO L93 Difference]: Finished difference Result 452 states and 651 transitions. [2020-10-28 18:04:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 18:04:37,116 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-10-28 18:04:37,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:04:37,120 INFO L225 Difference]: With dead ends: 452 [2020-10-28 18:04:37,120 INFO L226 Difference]: Without dead ends: 240 [2020-10-28 18:04:37,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-28 18:04:37,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-28 18:04:37,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-10-28 18:04:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-28 18:04:37,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 342 transitions. [2020-10-28 18:04:37,178 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 342 transitions. Word has length 72 [2020-10-28 18:04:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:04:37,178 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 342 transitions. [2020-10-28 18:04:37,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 18:04:37,179 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 342 transitions. [2020-10-28 18:04:37,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 18:04:37,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:04:37,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:04:37,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 18:04:37,183 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:04:37,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:04:37,184 INFO L82 PathProgramCache]: Analyzing trace with hash 506965050, now seen corresponding path program 1 times [2020-10-28 18:04:37,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:04:37,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843841184] [2020-10-28 18:04:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:04:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:37,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:37,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:37,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:40,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 18:04:42,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 18:04:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 18:04:42,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 18:04:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 18:04:42,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,576 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:04:42,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:04:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:42,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:04:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 18:04:42,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:04:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:42,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:04:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:04:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:42,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:04:42,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:42,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:04:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:04:42,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:04:42,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:42,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:42,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:42,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:04:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:42,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:04:42,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:42,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:04:42,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:42,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:04:42,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:04:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:42,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:04:42,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:04:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:42,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:04:42,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:04:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:04:42,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:04:42,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:42,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 18:04:42,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:04:42,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:42,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:04:42,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:04:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:42,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:42,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 18:04:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:42,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:42,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:42,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:42,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:42,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:42,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:42,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:04:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:42,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:04:42,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843841184] [2020-10-28 18:04:42,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:04:42,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 18:04:42,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065610154] [2020-10-28 18:04:42,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 18:04:42,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:04:42,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 18:04:42,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:04:42,999 INFO L87 Difference]: Start difference. First operand 240 states and 342 transitions. Second operand 12 states. [2020-10-28 18:04:44,169 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:04:45,063 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 18:04:45,211 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:04:45,362 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 18:04:46,963 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 18:04:47,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:04:47,939 INFO L93 Difference]: Finished difference Result 646 states and 918 transitions. [2020-10-28 18:04:47,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:04:47,940 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-10-28 18:04:47,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:04:47,953 INFO L225 Difference]: With dead ends: 646 [2020-10-28 18:04:47,954 INFO L226 Difference]: Without dead ends: 430 [2020-10-28 18:04:47,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:04:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-28 18:04:48,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 412. [2020-10-28 18:04:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-28 18:04:48,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 590 transitions. [2020-10-28 18:04:48,083 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 590 transitions. Word has length 94 [2020-10-28 18:04:48,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:04:48,084 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 590 transitions. [2020-10-28 18:04:48,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 18:04:48,084 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 590 transitions. [2020-10-28 18:04:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 18:04:48,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:04:48,088 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:04:48,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 18:04:48,089 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:04:48,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:04:48,090 INFO L82 PathProgramCache]: Analyzing trace with hash 137432423, now seen corresponding path program 1 times [2020-10-28 18:04:48,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:04:48,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531302544] [2020-10-28 18:04:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:04:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:48,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:48,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:48,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 18:04:53,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:04:53,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 18:04:53,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:04:53,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:04:53,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 18:04:53,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,437 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:04:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:04:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:53,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 18:04:53,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:04:53,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:04:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:53,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:04:53,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:04:53,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:04:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:53,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:53,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:04:53,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:04:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:04:53,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:04:53,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:04:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:53,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:53,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:53,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:53,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:04:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:53,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:04:53,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:04:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:53,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:04:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:04:53,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:04:53,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:04:53,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:53,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:04:53,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:04:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:04:53,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 18:04:53,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:04:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:04:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 18:04:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:04:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:53,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:53,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:04:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:04:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:04:53,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:53,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:04:53,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:04:53,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:04:53,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 18:04:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:53,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:53,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:04:53,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:04:53,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:04:53,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:04:53,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:04:53,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:04:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:04:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:04:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:04:53,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:04:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:04:53,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531302544] [2020-10-28 18:04:53,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:04:53,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-28 18:04:53,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513859974] [2020-10-28 18:04:53,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 18:04:53,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:04:53,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 18:04:53,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-28 18:04:53,938 INFO L87 Difference]: Start difference. First operand 412 states and 590 transitions. Second operand 16 states. [2020-10-28 18:04:54,236 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:04:55,766 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 18:04:55,917 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:04:56,642 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:04:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:04:59,124 INFO L93 Difference]: Finished difference Result 938 states and 1321 transitions. [2020-10-28 18:04:59,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 18:04:59,125 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2020-10-28 18:04:59,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:04:59,130 INFO L225 Difference]: With dead ends: 938 [2020-10-28 18:04:59,131 INFO L226 Difference]: Without dead ends: 550 [2020-10-28 18:04:59,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 18:04:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-28 18:04:59,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 548. [2020-10-28 18:04:59,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-10-28 18:04:59,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 764 transitions. [2020-10-28 18:04:59,239 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 764 transitions. Word has length 95 [2020-10-28 18:04:59,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:04:59,240 INFO L481 AbstractCegarLoop]: Abstraction has 548 states and 764 transitions. [2020-10-28 18:04:59,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 18:04:59,240 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 764 transitions. [2020-10-28 18:04:59,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-28 18:04:59,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:04:59,243 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:04:59,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 18:04:59,243 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:04:59,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:04:59,244 INFO L82 PathProgramCache]: Analyzing trace with hash -2125213997, now seen corresponding path program 1 times [2020-10-28 18:04:59,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:04:59,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623887582] [2020-10-28 18:04:59,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:04:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:04:59,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:59,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:59,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:59,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:59,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:04:59,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:00,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:00,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 18:05:04,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 18:05:04,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 18:05:04,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:04,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 18:05:04,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-28 18:05:04,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,543 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:04,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:05:04,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:04,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:04,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:04,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:04,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:05:04,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:04,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:05:04,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 18:05:04,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:04,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:05:04,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:04,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:05:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:04,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:05:04,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:05:04,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:04,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:05:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 18:05:04,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:05:04,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 18:05:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:04,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 18:05:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:04,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:05:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:04,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:04,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:05:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:04,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623887582] [2020-10-28 18:05:04,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:04,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 18:05:04,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120577488] [2020-10-28 18:05:04,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 18:05:04,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:04,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 18:05:04,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:05:04,909 INFO L87 Difference]: Start difference. First operand 548 states and 764 transitions. Second operand 12 states. [2020-10-28 18:05:05,174 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:07,076 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 18:05:09,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:09,641 INFO L93 Difference]: Finished difference Result 960 states and 1346 transitions. [2020-10-28 18:05:09,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:05:09,648 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-10-28 18:05:09,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:09,653 INFO L225 Difference]: With dead ends: 960 [2020-10-28 18:05:09,653 INFO L226 Difference]: Without dead ends: 566 [2020-10-28 18:05:09,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:05:09,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-10-28 18:05:09,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 548. [2020-10-28 18:05:09,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-10-28 18:05:09,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 762 transitions. [2020-10-28 18:05:09,759 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 762 transitions. Word has length 97 [2020-10-28 18:05:09,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:09,762 INFO L481 AbstractCegarLoop]: Abstraction has 548 states and 762 transitions. [2020-10-28 18:05:09,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 18:05:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 762 transitions. [2020-10-28 18:05:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-28 18:05:09,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:09,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:09,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 18:05:09,766 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:09,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:09,766 INFO L82 PathProgramCache]: Analyzing trace with hash 504158739, now seen corresponding path program 1 times [2020-10-28 18:05:09,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:09,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383234161] [2020-10-28 18:05:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:09,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:09,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:14,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:14,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 18:05:14,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 18:05:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 18:05:14,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:14,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:05:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:05:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 18:05:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,156 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:15,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:15,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 18:05:15,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:05:15,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:15,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:15,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:15,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:05:15,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:15,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:15,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:05:15,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:15,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 18:05:15,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:05:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:15,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:15,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:15,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 18:05:15,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:15,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:05:15,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:05:15,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:15,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:15,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:15,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:15,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:15,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 18:05:15,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:05:15,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:15,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:15,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:05:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 18:05:15,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 18:05:15,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:05:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:05:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 18:05:15,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:15,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:05:15,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:05:15,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:15,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 18:05:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:15,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:15,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:05:15,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 18:05:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:15,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:15,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:15,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:15,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:15,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:15,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:05:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:15,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:15,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:15,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383234161] [2020-10-28 18:05:15,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:15,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-28 18:05:15,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612646267] [2020-10-28 18:05:15,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 18:05:15,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:15,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 18:05:15,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-28 18:05:15,720 INFO L87 Difference]: Start difference. First operand 548 states and 762 transitions. Second operand 16 states. [2020-10-28 18:05:15,990 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:16,496 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:05:17,935 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:05:20,293 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 18:05:20,434 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:05:21,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:21,162 INFO L93 Difference]: Finished difference Result 970 states and 1363 transitions. [2020-10-28 18:05:21,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 18:05:21,163 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-10-28 18:05:21,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:21,168 INFO L225 Difference]: With dead ends: 970 [2020-10-28 18:05:21,168 INFO L226 Difference]: Without dead ends: 570 [2020-10-28 18:05:21,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2020-10-28 18:05:21,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-28 18:05:21,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 558. [2020-10-28 18:05:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-28 18:05:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 774 transitions. [2020-10-28 18:05:21,265 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 774 transitions. Word has length 96 [2020-10-28 18:05:21,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:21,266 INFO L481 AbstractCegarLoop]: Abstraction has 558 states and 774 transitions. [2020-10-28 18:05:21,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 18:05:21,266 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 774 transitions. [2020-10-28 18:05:21,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-28 18:05:21,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:21,268 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:21,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 18:05:21,269 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:21,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1396147020, now seen corresponding path program 1 times [2020-10-28 18:05:21,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:21,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395331774] [2020-10-28 18:05:21,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:21,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:21,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:22,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2679 [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:05:23,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-28 18:05:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:05:23,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:24,273 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:24,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:05:24,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:24,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:24,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:24,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:24,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:24,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:05:24,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:24,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:24,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:24,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:24,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:05:24,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:24,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:24,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:24,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 18:05:24,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:24,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:05:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:05:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:05:24,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:24,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:24,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:05:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:24,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:24,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:24,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:24,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:05:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:24,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:24,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:24,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:24,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:24,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:05:24,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:24,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:05:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 18:05:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:05:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 18:05:24,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395331774] [2020-10-28 18:05:24,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:24,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 18:05:24,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591244841] [2020-10-28 18:05:24,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 18:05:24,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:24,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 18:05:24,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-28 18:05:24,803 INFO L87 Difference]: Start difference. First operand 558 states and 774 transitions. Second operand 14 states. [2020-10-28 18:05:25,196 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:05:25,470 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:05:26,881 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:05:27,351 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:05:28,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:28,817 INFO L93 Difference]: Finished difference Result 953 states and 1336 transitions. [2020-10-28 18:05:28,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 18:05:28,818 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 97 [2020-10-28 18:05:28,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:28,822 INFO L225 Difference]: With dead ends: 953 [2020-10-28 18:05:28,822 INFO L226 Difference]: Without dead ends: 558 [2020-10-28 18:05:28,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-28 18:05:28,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-10-28 18:05:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2020-10-28 18:05:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-28 18:05:28,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 773 transitions. [2020-10-28 18:05:28,929 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 773 transitions. Word has length 97 [2020-10-28 18:05:28,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:28,930 INFO L481 AbstractCegarLoop]: Abstraction has 558 states and 773 transitions. [2020-10-28 18:05:28,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 18:05:28,930 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 773 transitions. [2020-10-28 18:05:28,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-28 18:05:28,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:28,933 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:28,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 18:05:28,934 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:28,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:28,934 INFO L82 PathProgramCache]: Analyzing trace with hash -375078666, now seen corresponding path program 1 times [2020-10-28 18:05:28,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:28,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101993599] [2020-10-28 18:05:28,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:28,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:28,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 18:05:30,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:05:30,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1246 [2020-10-28 18:05:30,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 18:05:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 18:05:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,484 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:30,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:30,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:30,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:30,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:30,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:05:30,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:30,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:30,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:30,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:05:30,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:05:30,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:05:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:05:30,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:05:30,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:30,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:05:30,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:30,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:05:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:05:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:30,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:05:30,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:30,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101993599] [2020-10-28 18:05:30,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:30,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 18:05:30,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108884820] [2020-10-28 18:05:30,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 18:05:30,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:30,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 18:05:30,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:05:30,972 INFO L87 Difference]: Start difference. First operand 558 states and 773 transitions. Second operand 12 states. [2020-10-28 18:05:32,425 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:05:32,657 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 18:05:35,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:35,693 INFO L93 Difference]: Finished difference Result 1205 states and 1675 transitions. [2020-10-28 18:05:35,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:05:35,693 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-10-28 18:05:35,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:35,699 INFO L225 Difference]: With dead ends: 1205 [2020-10-28 18:05:35,699 INFO L226 Difference]: Without dead ends: 757 [2020-10-28 18:05:35,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:05:35,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-10-28 18:05:35,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 750. [2020-10-28 18:05:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-28 18:05:35,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1043 transitions. [2020-10-28 18:05:35,812 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1043 transitions. Word has length 97 [2020-10-28 18:05:35,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:35,813 INFO L481 AbstractCegarLoop]: Abstraction has 750 states and 1043 transitions. [2020-10-28 18:05:35,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 18:05:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1043 transitions. [2020-10-28 18:05:35,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-28 18:05:35,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:35,815 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:35,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 18:05:35,815 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:35,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1707447309, now seen corresponding path program 1 times [2020-10-28 18:05:35,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:35,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477874523] [2020-10-28 18:05:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:35,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:05:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:36,886 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:36,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:36,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:36,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:36,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 18:05:36,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:36,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:36,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:36,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:36,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:36,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:36,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:36,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:36,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:36,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:36,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:36,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:36,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:36,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:36,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:36,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:36,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:36,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:36,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:36,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:36,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:36,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:36,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:36,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:36,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:36,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:05:37,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:05:37,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:37,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:37,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:05:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:37,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:05:37,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:37,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:05:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:05:37,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:37,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:37,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:37,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:05:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:37,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:37,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:05:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:37,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:37,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477874523] [2020-10-28 18:05:37,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:37,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:05:37,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628879317] [2020-10-28 18:05:37,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:05:37,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:37,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:05:37,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:05:37,259 INFO L87 Difference]: Start difference. First operand 750 states and 1043 transitions. Second operand 13 states. [2020-10-28 18:05:39,162 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:39,445 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 18:05:40,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:40,835 INFO L93 Difference]: Finished difference Result 1343 states and 1886 transitions. [2020-10-28 18:05:40,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:05:40,836 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2020-10-28 18:05:40,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:40,843 INFO L225 Difference]: With dead ends: 1343 [2020-10-28 18:05:40,843 INFO L226 Difference]: Without dead ends: 765 [2020-10-28 18:05:40,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:05:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-28 18:05:40,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2020-10-28 18:05:40,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-10-28 18:05:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1055 transitions. [2020-10-28 18:05:40,956 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1055 transitions. Word has length 97 [2020-10-28 18:05:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:40,956 INFO L481 AbstractCegarLoop]: Abstraction has 765 states and 1055 transitions. [2020-10-28 18:05:40,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:05:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1055 transitions. [2020-10-28 18:05:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 18:05:40,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:40,959 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:40,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 18:05:40,959 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:40,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:40,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1835156851, now seen corresponding path program 1 times [2020-10-28 18:05:40,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:40,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983387646] [2020-10-28 18:05:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:40,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 18:05:41,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:05:41,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-10-28 18:05:41,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:05:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-28 18:05:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:05:41,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,075 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:42,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:42,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:05:42,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:42,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:42,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:05:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:42,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:05:42,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:05:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:42,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:05:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:05:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:42,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 18:05:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:42,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:42,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:42,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:05:42,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:42,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:42,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:42,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:42,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983387646] [2020-10-28 18:05:42,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:42,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:05:42,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070960321] [2020-10-28 18:05:42,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:05:42,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:42,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:05:42,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:05:42,437 INFO L87 Difference]: Start difference. First operand 765 states and 1055 transitions. Second operand 13 states. [2020-10-28 18:05:44,303 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:05:44,578 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:05:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:45,754 INFO L93 Difference]: Finished difference Result 1373 states and 1919 transitions. [2020-10-28 18:05:45,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:05:45,756 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2020-10-28 18:05:45,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:45,762 INFO L225 Difference]: With dead ends: 1373 [2020-10-28 18:05:45,762 INFO L226 Difference]: Without dead ends: 780 [2020-10-28 18:05:45,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:05:45,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-10-28 18:05:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2020-10-28 18:05:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-10-28 18:05:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1067 transitions. [2020-10-28 18:05:45,877 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1067 transitions. Word has length 105 [2020-10-28 18:05:45,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:45,877 INFO L481 AbstractCegarLoop]: Abstraction has 780 states and 1067 transitions. [2020-10-28 18:05:45,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:05:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1067 transitions. [2020-10-28 18:05:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-28 18:05:45,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:45,880 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:45,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 18:05:45,881 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash -929509271, now seen corresponding path program 1 times [2020-10-28 18:05:45,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:45,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021638424] [2020-10-28 18:05:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:45,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:45,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:50,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:50,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-28 18:05:50,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:05:50,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4719 [2020-10-28 18:05:50,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:50,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:05:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 18:05:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:05:50,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:50,907 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:50,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:50,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:50,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:50,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:50,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:50,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:05:50,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:50,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:50,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:50,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:50,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:50,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:50,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:50,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:50,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:50,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:50,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:50,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:50,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:50,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:50,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:50,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:50,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:50,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:50,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:50,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:50,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:50,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:50,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:50,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:50,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:50,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:50,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:50,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:50,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:50,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:50,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:50,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:50,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 25 [2020-10-28 18:05:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:05:51,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:05:51,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:51,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:51,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:05:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:51,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:05:51,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:05:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:05:51,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:05:51,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:05:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:51,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:51,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:05:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:51,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:51,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 18:05:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:05:51,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:51,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 18:05:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:51,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:05:51,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:51,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:51,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:51,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:51,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021638424] [2020-10-28 18:05:51,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:51,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:05:51,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436883051] [2020-10-28 18:05:51,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:05:51,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:51,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:05:51,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:05:51,268 INFO L87 Difference]: Start difference. First operand 780 states and 1067 transitions. Second operand 13 states. [2020-10-28 18:05:53,327 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:53,634 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:05:54,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:54,736 INFO L93 Difference]: Finished difference Result 1400 states and 1931 transitions. [2020-10-28 18:05:54,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:05:54,737 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-10-28 18:05:54,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:54,743 INFO L225 Difference]: With dead ends: 1400 [2020-10-28 18:05:54,743 INFO L226 Difference]: Without dead ends: 792 [2020-10-28 18:05:54,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:05:54,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-10-28 18:05:54,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2020-10-28 18:05:54,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2020-10-28 18:05:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1076 transitions. [2020-10-28 18:05:54,857 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1076 transitions. Word has length 113 [2020-10-28 18:05:54,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:54,858 INFO L481 AbstractCegarLoop]: Abstraction has 792 states and 1076 transitions. [2020-10-28 18:05:54,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:05:54,858 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1076 transitions. [2020-10-28 18:05:54,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-28 18:05:54,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:54,862 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:54,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 18:05:54,862 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:54,863 INFO L82 PathProgramCache]: Analyzing trace with hash 392331465, now seen corresponding path program 1 times [2020-10-28 18:05:54,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:54,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666439165] [2020-10-28 18:05:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:54,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:55,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:55,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 683 [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 18:05:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:05:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:55,905 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:55,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:55,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:55,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:55,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:55,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:55,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:55,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:55,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:55,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:55,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:05:55,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:55,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:55,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:55,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:05:55,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:55,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:55,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:55,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:55,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:05:56,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:05:56,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:56,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:56,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:05:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:56,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:56,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:05:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:05:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:56,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:56,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:05:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 18:05:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:05:56,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:56,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 18:05:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:56,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:56,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:56,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:05:56,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:56,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:56,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:56,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:56,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:56,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666439165] [2020-10-28 18:05:56,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:56,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:05:56,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550238947] [2020-10-28 18:05:56,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:05:56,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:56,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:05:56,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:05:56,225 INFO L87 Difference]: Start difference. First operand 792 states and 1076 transitions. Second operand 13 states. [2020-10-28 18:05:57,634 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:05:58,278 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:58,545 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:05:59,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:59,618 INFO L93 Difference]: Finished difference Result 1427 states and 1961 transitions. [2020-10-28 18:05:59,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:05:59,619 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-10-28 18:05:59,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:59,626 INFO L225 Difference]: With dead ends: 1427 [2020-10-28 18:05:59,627 INFO L226 Difference]: Without dead ends: 807 [2020-10-28 18:05:59,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:05:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2020-10-28 18:05:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 807. [2020-10-28 18:05:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-10-28 18:05:59,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1088 transitions. [2020-10-28 18:05:59,761 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1088 transitions. Word has length 113 [2020-10-28 18:05:59,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:59,762 INFO L481 AbstractCegarLoop]: Abstraction has 807 states and 1088 transitions. [2020-10-28 18:05:59,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:05:59,762 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1088 transitions. [2020-10-28 18:05:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 18:05:59,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:59,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:05:59,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 18:05:59,765 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:59,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2088707081, now seen corresponding path program 1 times [2020-10-28 18:05:59,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:59,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141576991] [2020-10-28 18:05:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:59,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:00,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:04,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:04,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-28 18:06:04,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:06:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 18:06:04,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:04,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 18:06:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-10-28 18:06:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:06:04,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,101 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:05,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:06:05,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:05,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:05,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:05,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:06:05,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:06:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:05,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:05,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:06:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:06:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:05,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:05,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:06:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:05,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:05,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 18:06:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:05,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:05,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:05,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 18:06:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:05,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:05,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:05,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 18:06:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:05,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:05,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:05,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:05,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:05,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:05,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:06:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:06:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 18:06:05,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141576991] [2020-10-28 18:06:05,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:05,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-28 18:06:05,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469578091] [2020-10-28 18:06:05,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-28 18:06:05,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:05,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-28 18:06:05,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-10-28 18:06:05,541 INFO L87 Difference]: Start difference. First operand 807 states and 1088 transitions. Second operand 17 states. [2020-10-28 18:06:05,861 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:08,214 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:06:08,402 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 18:06:08,938 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:06:09,230 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:06:09,532 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:06:09,848 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:06:10,251 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:06:10,629 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:06:10,975 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:06:12,533 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:06:14,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:14,012 INFO L93 Difference]: Finished difference Result 1874 states and 2536 transitions. [2020-10-28 18:06:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:06:14,013 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 121 [2020-10-28 18:06:14,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:14,022 INFO L225 Difference]: With dead ends: 1874 [2020-10-28 18:06:14,022 INFO L226 Difference]: Without dead ends: 1239 [2020-10-28 18:06:14,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 18:06:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-10-28 18:06:14,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1086. [2020-10-28 18:06:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-10-28 18:06:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1457 transitions. [2020-10-28 18:06:14,184 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1457 transitions. Word has length 121 [2020-10-28 18:06:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:14,187 INFO L481 AbstractCegarLoop]: Abstraction has 1086 states and 1457 transitions. [2020-10-28 18:06:14,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-28 18:06:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1457 transitions. [2020-10-28 18:06:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-28 18:06:14,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:14,190 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:06:14,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 18:06:14,191 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:14,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:14,191 INFO L82 PathProgramCache]: Analyzing trace with hash 197979059, now seen corresponding path program 1 times [2020-10-28 18:06:14,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:14,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394418526] [2020-10-28 18:06:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:14,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:06:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:06:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:06:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:14,840 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:14,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:14,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:14,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:14,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:06:14,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:14,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:14,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:14,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:14,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:14,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:14,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:14,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:14,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:06:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 18:06:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:14,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:14,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:14,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:14,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:14,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:14,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:14,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:06:14,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:14,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:06:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:14,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:14,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:14,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:14,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:14,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:14,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:14,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:14,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:14,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:14,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:14,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:14,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:14,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:15,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:06:15,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 18:06:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:15,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:06:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:15,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:06:15,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 18:06:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:15,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:15,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:06:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:15,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:06:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 18:06:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 18:06:15,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:06:15,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-28 18:06:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:06:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:15,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:06:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:15,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:06:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:15,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:06:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:15,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 18:06:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:15,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:15,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:15,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:15,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:15,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:15,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:15,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 18:06:15,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394418526] [2020-10-28 18:06:15,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 18:06:15,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 18:06:15,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924941727] [2020-10-28 18:06:15,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 18:06:15,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:15,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 18:06:15,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-28 18:06:15,316 INFO L87 Difference]: Start difference. First operand 1086 states and 1457 transitions. Second operand 16 states. [2020-10-28 18:06:15,634 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:15,982 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:06:16,256 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:06:16,522 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 18:06:17,967 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:06:19,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:19,692 INFO L93 Difference]: Finished difference Result 2149 states and 2880 transitions. [2020-10-28 18:06:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 18:06:19,693 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 126 [2020-10-28 18:06:19,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:19,699 INFO L225 Difference]: With dead ends: 2149 [2020-10-28 18:06:19,699 INFO L226 Difference]: Without dead ends: 1086 [2020-10-28 18:06:19,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:06:19,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2020-10-28 18:06:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1086. [2020-10-28 18:06:19,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-10-28 18:06:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1445 transitions. [2020-10-28 18:06:19,876 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1445 transitions. Word has length 126 [2020-10-28 18:06:19,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:19,876 INFO L481 AbstractCegarLoop]: Abstraction has 1086 states and 1445 transitions. [2020-10-28 18:06:19,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 18:06:19,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1445 transitions. [2020-10-28 18:06:19,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-28 18:06:19,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:19,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:06:19,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 18:06:19,879 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:19,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:19,880 INFO L82 PathProgramCache]: Analyzing trace with hash -812060310, now seen corresponding path program 1 times [2020-10-28 18:06:19,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:19,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052631939] [2020-10-28 18:06:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:19,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:20,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 18:06:24,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:06:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4084 [2020-10-28 18:06:24,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 18:06:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:06:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 18:06:24,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,290 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:24,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:06:24,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:24,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:24,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:06:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:06:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:24,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:24,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:06:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:24,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:06:24,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:24,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:06:24,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:24,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:06:24,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:24,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:24,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:06:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:24,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 18:06:24,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 18:06:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:06:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:06:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:06:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:06:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:24,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:06:24,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:06:24,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:24,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:24,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:06:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:06:24,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:24,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:06:24,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:06:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:24,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 18:06:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 18:06:24,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 18:06:24,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:06:24,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 18:06:24,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 18:06:24,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:06:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:24,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:24,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:24,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:06:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:24,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:24,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:24,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:06:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:24,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:06:24,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:24,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:24,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:06:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:24,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:24,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:06:24,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 18:06:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:24,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:24,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:24,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:24,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:24,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:24,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 18:06:24,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052631939] [2020-10-28 18:06:24,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:24,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 18:06:24,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910013909] [2020-10-28 18:06:24,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 18:06:24,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:24,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 18:06:24,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-28 18:06:24,935 INFO L87 Difference]: Start difference. First operand 1086 states and 1445 transitions. Second operand 19 states. [2020-10-28 18:06:25,302 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:06:25,596 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:26,007 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 18:06:26,931 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:06:27,949 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 18:06:28,716 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:06:29,041 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:06:29,325 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:06:32,330 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:06:32,624 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:06:32,887 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:06:33,181 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:06:33,467 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 18:06:33,934 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:06:36,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:36,522 INFO L93 Difference]: Finished difference Result 2411 states and 3164 transitions. [2020-10-28 18:06:36,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-28 18:06:36,522 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 137 [2020-10-28 18:06:36,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:36,531 INFO L225 Difference]: With dead ends: 2411 [2020-10-28 18:06:36,531 INFO L226 Difference]: Without dead ends: 1497 [2020-10-28 18:06:36,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2020-10-28 18:06:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-10-28 18:06:36,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1402. [2020-10-28 18:06:36,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2020-10-28 18:06:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1809 transitions. [2020-10-28 18:06:36,729 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1809 transitions. Word has length 137 [2020-10-28 18:06:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:36,729 INFO L481 AbstractCegarLoop]: Abstraction has 1402 states and 1809 transitions. [2020-10-28 18:06:36,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 18:06:36,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1809 transitions. [2020-10-28 18:06:36,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-28 18:06:36,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:36,732 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:06:36,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 18:06:36,733 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:36,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1309824788, now seen corresponding path program 1 times [2020-10-28 18:06:36,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:36,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089833203] [2020-10-28 18:06:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:36,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:36,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:36,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:06:36,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,264 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:37,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:06:37,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:37,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:06:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:37,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:06:37,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:06:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:06:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:37,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:06:37,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:37,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:06:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:37,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:06:37,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:37,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:06:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:06:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:37,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 18:06:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-28 18:06:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:37,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:06:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-28 18:06:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:37,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:06:37,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 18:06:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:37,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:37,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:37,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:37,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:37,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:37,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 18:06:37,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089833203] [2020-10-28 18:06:37,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:37,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:06:37,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091402677] [2020-10-28 18:06:37,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:06:37,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:37,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:06:37,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:06:37,622 INFO L87 Difference]: Start difference. First operand 1402 states and 1809 transitions. Second operand 13 states. [2020-10-28 18:06:39,658 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:06:39,913 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:06:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:40,905 INFO L93 Difference]: Finished difference Result 2487 states and 3243 transitions. [2020-10-28 18:06:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:06:40,905 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 139 [2020-10-28 18:06:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:40,911 INFO L225 Difference]: With dead ends: 2487 [2020-10-28 18:06:40,912 INFO L226 Difference]: Without dead ends: 1390 [2020-10-28 18:06:40,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:06:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2020-10-28 18:06:41,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1366. [2020-10-28 18:06:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2020-10-28 18:06:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1742 transitions. [2020-10-28 18:06:41,103 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1742 transitions. Word has length 139 [2020-10-28 18:06:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:41,104 INFO L481 AbstractCegarLoop]: Abstraction has 1366 states and 1742 transitions. [2020-10-28 18:06:41,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:06:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1742 transitions. [2020-10-28 18:06:41,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-28 18:06:41,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:41,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:06:41,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 18:06:41,108 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:41,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1881779166, now seen corresponding path program 1 times [2020-10-28 18:06:41,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:41,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398166214] [2020-10-28 18:06:41,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:41,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:41,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:42,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:42,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-28 18:06:42,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:06:42,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1800 [2020-10-28 18:06:42,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:42,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:42,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:42,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-28 18:06:42,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:42,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,236 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:43,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:06:43,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:06:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:06:43,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:06:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:06:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:06:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:06:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:06:43,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:43,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:43,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:06:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 18:06:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-28 18:06:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:43,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:06:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:43,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-28 18:06:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-28 18:06:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 18:06:43,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398166214] [2020-10-28 18:06:43,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:43,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:06:43,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442197065] [2020-10-28 18:06:43,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:06:43,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:43,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:06:43,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:06:43,608 INFO L87 Difference]: Start difference. First operand 1366 states and 1742 transitions. Second operand 13 states. [2020-10-28 18:06:45,026 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:06:45,949 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:06:46,223 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:06:47,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:47,280 INFO L93 Difference]: Finished difference Result 2403 states and 3106 transitions. [2020-10-28 18:06:47,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:06:47,280 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-28 18:06:47,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:47,287 INFO L225 Difference]: With dead ends: 2403 [2020-10-28 18:06:47,287 INFO L226 Difference]: Without dead ends: 1402 [2020-10-28 18:06:47,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:06:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-28 18:06:47,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1402. [2020-10-28 18:06:47,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2020-10-28 18:06:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1772 transitions. [2020-10-28 18:06:47,476 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1772 transitions. Word has length 140 [2020-10-28 18:06:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:47,476 INFO L481 AbstractCegarLoop]: Abstraction has 1402 states and 1772 transitions. [2020-10-28 18:06:47,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:06:47,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1772 transitions. [2020-10-28 18:06:47,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-28 18:06:47,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:47,479 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:06:47,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 18:06:47,480 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:47,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:47,480 INFO L82 PathProgramCache]: Analyzing trace with hash 2077645254, now seen corresponding path program 1 times [2020-10-28 18:06:47,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:47,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364984695] [2020-10-28 18:06:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:47,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:47,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4337 [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 18:06:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 18:06:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,143 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:52,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:52,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:52,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 18:06:52,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:06:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:52,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:06:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:06:52,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:06:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:52,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 18:06:52,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:06:52,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:52,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:06:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 18:06:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:52,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:52,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:06:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:06:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:06:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:06:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:06:52,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:06:52,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:06:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:06:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 18:06:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 18:06:52,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:06:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:52,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:06:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:52,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:06:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:52,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:06:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:52,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:52,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:52,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 18:06:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:52,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:06:52,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:52,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:52,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 18:06:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:52,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:52,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:52,806 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-28 18:06:52,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364984695] [2020-10-28 18:06:52,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:52,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 18:06:52,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820821931] [2020-10-28 18:06:52,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 18:06:52,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:52,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 18:06:52,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-28 18:06:52,808 INFO L87 Difference]: Start difference. First operand 1402 states and 1772 transitions. Second operand 19 states. [2020-10-28 18:06:53,194 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:06:53,516 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:53,866 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 18:06:55,544 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:06:55,926 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 18:06:56,127 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 18:06:56,977 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:06:57,338 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:06:57,967 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 172 [2020-10-28 18:06:58,783 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 18:07:00,021 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:07:00,828 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:07:01,365 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:07:01,686 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 18:07:02,032 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 18:07:02,365 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 18:07:03,607 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:07:06,111 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:07:07,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:07,623 INFO L93 Difference]: Finished difference Result 3532 states and 4507 transitions. [2020-10-28 18:07:07,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-28 18:07:07,623 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 145 [2020-10-28 18:07:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:07,636 INFO L225 Difference]: With dead ends: 3532 [2020-10-28 18:07:07,637 INFO L226 Difference]: Without dead ends: 2495 [2020-10-28 18:07:07,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=614, Invalid=2248, Unknown=0, NotChecked=0, Total=2862 [2020-10-28 18:07:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2020-10-28 18:07:07,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 1718. [2020-10-28 18:07:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2020-10-28 18:07:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2174 transitions. [2020-10-28 18:07:07,995 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2174 transitions. Word has length 145 [2020-10-28 18:07:07,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:07,997 INFO L481 AbstractCegarLoop]: Abstraction has 1718 states and 2174 transitions. [2020-10-28 18:07:07,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 18:07:07,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2174 transitions. [2020-10-28 18:07:07,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-28 18:07:07,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:07,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:07:07,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 18:07:08,000 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:08,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:08,000 INFO L82 PathProgramCache]: Analyzing trace with hash 202130183, now seen corresponding path program 1 times [2020-10-28 18:07:08,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:08,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870159064] [2020-10-28 18:07:08,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:08,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:08,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:08,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:08,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-28 18:07:08,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:07:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-10-28 18:07:08,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:08,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-28 18:07:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 18:07:08,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,069 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:07:09,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:09,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:07:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:09,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:09,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:07:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:09,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:09,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:07:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:09,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:07:09,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:09,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 18:07:09,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:09,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:07:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:07:09,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:07:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:07:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:09,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:07:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:09,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 18:07:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 18:07:09,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:07:09,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:09,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-28 18:07:09,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:07:09,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:07:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:09,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:07:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:07:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:09,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:07:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:07:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:09,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:09,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 18:07:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:09,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 18:07:09,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870159064] [2020-10-28 18:07:09,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:09,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 18:07:09,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221513205] [2020-10-28 18:07:09,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 18:07:09,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:09,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 18:07:09,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-28 18:07:09,485 INFO L87 Difference]: Start difference. First operand 1718 states and 2174 transitions. Second operand 14 states. [2020-10-28 18:07:09,811 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:07:11,386 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:07:12,539 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:07:12,675 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 18:07:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:18,713 INFO L93 Difference]: Finished difference Result 5816 states and 7455 transitions. [2020-10-28 18:07:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-28 18:07:18,714 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 146 [2020-10-28 18:07:18,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:18,738 INFO L225 Difference]: With dead ends: 5816 [2020-10-28 18:07:18,738 INFO L226 Difference]: Without dead ends: 4362 [2020-10-28 18:07:18,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2020-10-28 18:07:18,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4362 states. [2020-10-28 18:07:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4362 to 3932. [2020-10-28 18:07:19,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3932 states. [2020-10-28 18:07:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5000 transitions. [2020-10-28 18:07:19,439 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5000 transitions. Word has length 146 [2020-10-28 18:07:19,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:19,439 INFO L481 AbstractCegarLoop]: Abstraction has 3932 states and 5000 transitions. [2020-10-28 18:07:19,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 18:07:19,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5000 transitions. [2020-10-28 18:07:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-28 18:07:19,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:19,442 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:07:19,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 18:07:19,442 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:19,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:19,443 INFO L82 PathProgramCache]: Analyzing trace with hash 842664438, now seen corresponding path program 1 times [2020-10-28 18:07:19,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:19,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924951692] [2020-10-28 18:07:19,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:19,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:19,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-28 18:07:20,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:07:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-10-28 18:07:20,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 18:07:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 18:07:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-28 18:07:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,625 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:20,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:07:20,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:07:20,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:20,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:07:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:20,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:07:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:07:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:20,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:20,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 18:07:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:20,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:07:20,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:20,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:07:20,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:07:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:07:20,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:20,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:07:20,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:07:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:20,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 18:07:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:21,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:21,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-28 18:07:21,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:21,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 18:07:21,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:21,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:07:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 18:07:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 18:07:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:21,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 18:07:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:21,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:21,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:07:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:21,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:21,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:21,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:21,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:21,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:21,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:21,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:07:21,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:21,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 18:07:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:21,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:07:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:21,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 18:07:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:21,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:21,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:21,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:21,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:21,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:21,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:07:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:21,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:21,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 18:07:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:21,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:21,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:21,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:21,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:21,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:21,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:21,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:21,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:07:21,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:21,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 18:07:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:21,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:21,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-28 18:07:21,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924951692] [2020-10-28 18:07:21,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:21,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-28 18:07:21,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768380349] [2020-10-28 18:07:21,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 18:07:21,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:21,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 18:07:21,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-10-28 18:07:21,286 INFO L87 Difference]: Start difference. First operand 3932 states and 5000 transitions. Second operand 18 states. [2020-10-28 18:07:21,590 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-28 18:07:22,529 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-28 18:07:23,129 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:07:24,508 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 18:07:24,646 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 18:07:24,874 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 18:07:26,122 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:07:26,447 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:07:26,817 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:07:27,458 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-28 18:07:29,165 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 18:07:32,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:32,411 INFO L93 Difference]: Finished difference Result 7002 states and 8973 transitions. [2020-10-28 18:07:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-28 18:07:32,412 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 147 [2020-10-28 18:07:32,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:32,433 INFO L225 Difference]: With dead ends: 7002 [2020-10-28 18:07:32,433 INFO L226 Difference]: Without dead ends: 3628 [2020-10-28 18:07:32,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2020-10-28 18:07:32,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2020-10-28 18:07:32,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3376. [2020-10-28 18:07:32,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3376 states. [2020-10-28 18:07:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 4284 transitions. [2020-10-28 18:07:32,902 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 4284 transitions. Word has length 147 [2020-10-28 18:07:32,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:32,903 INFO L481 AbstractCegarLoop]: Abstraction has 3376 states and 4284 transitions. [2020-10-28 18:07:32,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 18:07:32,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 4284 transitions. [2020-10-28 18:07:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-28 18:07:32,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:32,905 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:07:32,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 18:07:32,905 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:32,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:32,906 INFO L82 PathProgramCache]: Analyzing trace with hash 537646449, now seen corresponding path program 1 times [2020-10-28 18:07:32,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:32,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331864934] [2020-10-28 18:07:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:32,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-28 18:07:33,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-28 18:07:33,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 18:07:33,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 18:07:33,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 18:07:33,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,686 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:33,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:33,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:07:33,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:33,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:33,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:07:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:07:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:33,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:33,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:33,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:33,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:07:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:33,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:33,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:33,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:33,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:07:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:33,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:07:33,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:07:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:07:33,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:33,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:33,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:07:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:07:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:34,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:34,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:07:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:34,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:34,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:34,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:34,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 18:07:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-28 18:07:34,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 18:07:34,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:07:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 18:07:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 18:07:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:07:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:34,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:34,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:07:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:07:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:34,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:34,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:34,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:07:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:34,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:34,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:07:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:34,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 18:07:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:34,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:34,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:34,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:34,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:34,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:34,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:34,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:34,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:34,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:34,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:07:34,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-28 18:07:34,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331864934] [2020-10-28 18:07:34,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:34,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-28 18:07:34,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068232103] [2020-10-28 18:07:34,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 18:07:34,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:34,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 18:07:34,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-28 18:07:34,294 INFO L87 Difference]: Start difference. First operand 3376 states and 4284 transitions. Second operand 18 states. [2020-10-28 18:07:34,674 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:07:34,994 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:07:35,743 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-28 18:07:37,437 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 18:07:37,739 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 18:07:37,901 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 18:07:38,161 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 18:07:38,313 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:07:40,153 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:07:40,470 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:07:40,865 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 18:07:41,224 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:07:42,166 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 171 [2020-10-28 18:07:42,809 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 171 [2020-10-28 18:07:44,105 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:07:44,263 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 18:07:46,309 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:07:50,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:50,126 INFO L93 Difference]: Finished difference Result 6896 states and 8895 transitions. [2020-10-28 18:07:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-28 18:07:50,126 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 148 [2020-10-28 18:07:50,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:50,146 INFO L225 Difference]: With dead ends: 6896 [2020-10-28 18:07:50,146 INFO L226 Difference]: Without dead ends: 3963 [2020-10-28 18:07:50,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=503, Invalid=1849, Unknown=0, NotChecked=0, Total=2352 [2020-10-28 18:07:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3963 states. [2020-10-28 18:07:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3963 to 3340. [2020-10-28 18:07:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3340 states. [2020-10-28 18:07:50,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 4239 transitions. [2020-10-28 18:07:50,666 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 4239 transitions. Word has length 148 [2020-10-28 18:07:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:50,666 INFO L481 AbstractCegarLoop]: Abstraction has 3340 states and 4239 transitions. [2020-10-28 18:07:50,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 18:07:50,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 4239 transitions. [2020-10-28 18:07:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-28 18:07:50,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:50,669 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:07:50,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 18:07:50,670 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:50,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:50,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1413459277, now seen corresponding path program 1 times [2020-10-28 18:07:50,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:50,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971820136] [2020-10-28 18:07:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:50,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:50,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:52,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:55,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:55,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-28 18:07:55,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:07:55,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 18:07:55,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:55,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:55,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:55,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-10-28 18:07:55,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:55,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:55,989 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:55,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:55,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:56,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:07:56,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:07:56,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:56,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:07:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:56,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:07:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:56,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:56,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:07:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:56,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:56,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:07:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:56,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:07:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 18:07:56,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:56,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:56,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 18:07:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 18:07:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-28 18:07:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:07:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:56,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-28 18:07:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-28 18:07:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:56,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-28 18:07:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:56,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:56,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:56,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:07:56,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:56,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:56,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:56,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:56,357 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-28 18:07:56,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971820136] [2020-10-28 18:07:56,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:56,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:07:56,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719230037] [2020-10-28 18:07:56,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:07:56,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:56,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:07:56,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:07:56,358 INFO L87 Difference]: Start difference. First operand 3340 states and 4239 transitions. Second operand 13 states. [2020-10-28 18:07:56,675 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 18:07:58,714 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:07:58,987 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 165