/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --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=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:37:49,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:37:49,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:37:49,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:37:49,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:37:49,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:37:49,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:37:49,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:37:49,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:37:49,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:37:49,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:37:49,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:37:49,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:37:49,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:37:49,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:37:49,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:37:49,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:37:49,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:37:49,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:37:49,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:37:49,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:37:49,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:37:49,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:37:49,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:37:49,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:37:49,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:37:49,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:37:49,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:37:49,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:37:49,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:37:49,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:37:49,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:37:49,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:37:49,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:37:49,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:37:49,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:37:49,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:37:49,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:37:49,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:37:49,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:37:49,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:37:49,215 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 [2020-09-25 08:37:49,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:37:49,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:37:49,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:37:49,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:37:49,265 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:37:49,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:37:49,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:37:49,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:37:49,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:37:49,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:37:49,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:37:49,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:37:49,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:37:49,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:37:49,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:37:49,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:37:49,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:37:49,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:37:49,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:37:49,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:37:49,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:37:49,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:37:49,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:37:49,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:37:49,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:37:49,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:37:49,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:37:49,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:37:49,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:37:49,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement 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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=true; [2020-09-25 08:37:49,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:37:49,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:37:49,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:37:49,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:37:49,793 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:37:49,794 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product14.cil.c [2020-09-25 08:37:49,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27515cfaa/3f4790e9c91c48b0a7be80245a9981c5/FLAGf8835d1a6 [2020-09-25 08:37:50,497 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:37:50,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product14.cil.c [2020-09-25 08:37:50,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27515cfaa/3f4790e9c91c48b0a7be80245a9981c5/FLAGf8835d1a6 [2020-09-25 08:37:50,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27515cfaa/3f4790e9c91c48b0a7be80245a9981c5 [2020-09-25 08:37:50,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:37:50,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:37:50,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:37:50,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:37:50,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:37:50,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:37:50" (1/1) ... [2020-09-25 08:37:50,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:50, skipping insertion in model container [2020-09-25 08:37:50,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:37:50" (1/1) ... [2020-09-25 08:37:50,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:37:50,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:37:51,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:37:51,273 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:37:51,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:37:51,577 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:37:51,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51 WrapperNode [2020-09-25 08:37:51,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:37:51,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:37:51,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:37:51,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:37:51,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (1/1) ... [2020-09-25 08:37:51,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (1/1) ... [2020-09-25 08:37:51,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (1/1) ... [2020-09-25 08:37:51,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (1/1) ... [2020-09-25 08:37:51,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (1/1) ... [2020-09-25 08:37:51,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (1/1) ... [2020-09-25 08:37:51,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (1/1) ... [2020-09-25 08:37:51,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:37:51,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:37:51,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:37:51,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:37:51,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (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 [2020-09-25 08:37:51,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:37:51,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:37:51,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:37:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:37:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:37:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:37:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:37:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:37:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:37:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:37:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:37:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:37:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:37:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:37:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:37:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:37:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:37:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:37:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:37:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:37:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:37:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:37:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:37:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:37:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:37:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:37:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:37:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:37:51,776 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:37:51,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:37:51,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:37:51,776 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 08:37:51,776 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:37:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:37:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:37:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:37:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:37:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:37:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:37:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:37:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:37:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:37:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:37:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:37:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:37:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:37:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:37:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:37:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:37:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:37:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:37:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:37:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:37:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:37:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:37:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:37:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:37:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:37:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:37:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:37:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:37:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:37:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:37:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:37:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:37:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:37:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:37:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:37:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:37:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:37:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:37:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:37:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:37:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:37:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:37:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:37:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:37:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:37:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:37:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:37:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:37:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:37:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:37:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:37:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:37:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:37:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 08:37:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:37:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:37:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:37:52,940 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:37:52,940 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:37:52,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:37:52 BoogieIcfgContainer [2020-09-25 08:37:52,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:37:52,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:37:52,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:37:52,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:37:52,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:37:50" (1/3) ... [2020-09-25 08:37:52,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea8035c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:37:52, skipping insertion in model container [2020-09-25 08:37:52,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:51" (2/3) ... [2020-09-25 08:37:52,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea8035c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:37:52, skipping insertion in model container [2020-09-25 08:37:52,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:37:52" (3/3) ... [2020-09-25 08:37:52,957 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product14.cil.c [2020-09-25 08:37:52,969 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:37:52,981 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:37:53,004 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:37:53,038 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:37:53,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:37:53,038 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:37:53,038 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:37:53,038 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:37:53,038 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:37:53,038 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:37:53,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:37:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-25 08:37:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:37:53,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:37:53,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:37:53,086 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:37:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:37:53,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1385255819, now seen corresponding path program 1 times [2020-09-25 08:37:53,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:37:53,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086133841] [2020-09-25 08:37:53,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:37:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:53,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:53,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:55,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:56,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:56,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:58,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:58,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:37:58,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:37:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:37:58,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:58,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:58,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:58,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:37:58,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:37:58,856 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:37:58,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:37:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:58,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:37:59,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-25 08:37:59,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:37:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:59,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:37:59,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:37:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:59,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:59,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:59,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:37:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:59,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:59,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:37:59,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:37:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:59,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:59,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:59,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:37:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:59,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:37:59,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:59,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:37:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:59,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:59,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:59,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:59,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:37:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:59,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:59,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:59,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:59,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:59,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:59,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:37:59,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086133841] [2020-09-25 08:37:59,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:37:59,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:37:59,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375941583] [2020-09-25 08:37:59,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:37:59,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:37:59,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:37:59,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:37:59,300 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2020-09-25 08:38:00,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:00,746 INFO L93 Difference]: Finished difference Result 414 states and 494 transitions. [2020-09-25 08:38:00,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:38:00,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:38:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:00,769 INFO L225 Difference]: With dead ends: 414 [2020-09-25 08:38:00,769 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 08:38:00,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 08:38:00,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 226. [2020-09-25 08:38:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-25 08:38:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 244 transitions. [2020-09-25 08:38:00,881 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 244 transitions. Word has length 148 [2020-09-25 08:38:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:00,882 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 244 transitions. [2020-09-25 08:38:00,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:38:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 244 transitions. [2020-09-25 08:38:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:38:00,887 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:00,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:00,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:38:00,888 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:00,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1189746064, now seen corresponding path program 1 times [2020-09-25 08:38:00,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:00,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345750248] [2020-09-25 08:38:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:01,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:02,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:03,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:03,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:05,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:05,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:05,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:38:05,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:38:05,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 08:38:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:05,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:38:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:38:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,294 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:06,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 08:38:06,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:06,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:06,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:06,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:06,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:06,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:38:06,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:06,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:06,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:06,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:06,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:38:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:06,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:06,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:06,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:38:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:06,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:06,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:38:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:06,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345750248] [2020-09-25 08:38:06,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:06,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:38:06,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536272944] [2020-09-25 08:38:06,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:38:06,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:06,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:38:06,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:38:06,558 INFO L87 Difference]: Start difference. First operand 226 states and 244 transitions. Second operand 5 states. [2020-09-25 08:38:07,316 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:08,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:08,253 INFO L93 Difference]: Finished difference Result 339 states and 385 transitions. [2020-09-25 08:38:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:38:08,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:38:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:08,262 INFO L225 Difference]: With dead ends: 339 [2020-09-25 08:38:08,263 INFO L226 Difference]: Without dead ends: 262 [2020-09-25 08:38:08,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:38:08,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-25 08:38:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 216. [2020-09-25 08:38:08,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-09-25 08:38:08,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 231 transitions. [2020-09-25 08:38:08,346 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 231 transitions. Word has length 149 [2020-09-25 08:38:08,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:08,347 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 231 transitions. [2020-09-25 08:38:08,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:38:08,347 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 231 transitions. [2020-09-25 08:38:08,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 08:38:08,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:08,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:08,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:38:08,360 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:08,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:08,360 INFO L82 PathProgramCache]: Analyzing trace with hash 564357855, now seen corresponding path program 1 times [2020-09-25 08:38:08,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:08,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801811653] [2020-09-25 08:38:08,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:08,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:08,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:09,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:09,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 08:38:13,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:38:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 08:38:13,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:38:13,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:38:13,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,745 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:13,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:13,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 08:38:13,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:13,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:13,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:13,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:38:13,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:13,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:13,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:13,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:13,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:38:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:13,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:13,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:13,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:38:13,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:38:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:13,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:13,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:38:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:14,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:14,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:14,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801811653] [2020-09-25 08:38:14,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:14,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:38:14,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817905194] [2020-09-25 08:38:14,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:38:14,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:14,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:38:14,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:38:14,046 INFO L87 Difference]: Start difference. First operand 216 states and 231 transitions. Second operand 6 states. [2020-09-25 08:38:14,622 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:15,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:15,605 INFO L93 Difference]: Finished difference Result 386 states and 450 transitions. [2020-09-25 08:38:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:38:15,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 08:38:15,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:15,614 INFO L225 Difference]: With dead ends: 386 [2020-09-25 08:38:15,614 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 08:38:15,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:38:15,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 08:38:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 216. [2020-09-25 08:38:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-09-25 08:38:15,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 230 transitions. [2020-09-25 08:38:15,674 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 230 transitions. Word has length 162 [2020-09-25 08:38:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:15,676 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 230 transitions. [2020-09-25 08:38:15,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:38:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 230 transitions. [2020-09-25 08:38:15,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 08:38:15,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:15,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:15,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:38:15,681 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:15,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:15,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1151054639, now seen corresponding path program 1 times [2020-09-25 08:38:15,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:15,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688732451] [2020-09-25 08:38:15,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:16,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:16,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:17,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:20,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:20,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 08:38:20,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:38:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:38:20,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:20,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:38:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:38:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 08:38:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:21,149 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:21,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 08:38:21,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:38:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:21,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:21,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:38:21,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:21,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:21,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:21,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:21,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:21,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:38:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:21,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:38:21,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:21,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:38:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:38:21,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:21,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:38:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:38:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:38:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:38:21,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:38:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:38:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:21,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:21,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688732451] [2020-09-25 08:38:21,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:21,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:38:21,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374895356] [2020-09-25 08:38:21,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:38:21,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:21,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:38:21,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:38:21,773 INFO L87 Difference]: Start difference. First operand 216 states and 230 transitions. Second operand 11 states. [2020-09-25 08:38:22,400 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:23,622 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:23,961 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:38:24,373 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:24,689 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:25,469 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:25,788 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:38:26,097 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:26,665 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:27,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:27,734 INFO L93 Difference]: Finished difference Result 607 states and 764 transitions. [2020-09-25 08:38:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 08:38:27,734 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 170 [2020-09-25 08:38:27,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:27,740 INFO L225 Difference]: With dead ends: 607 [2020-09-25 08:38:27,740 INFO L226 Difference]: Without dead ends: 506 [2020-09-25 08:38:27,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-25 08:38:27,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-09-25 08:38:27,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 299. [2020-09-25 08:38:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-25 08:38:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 325 transitions. [2020-09-25 08:38:27,797 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 325 transitions. Word has length 170 [2020-09-25 08:38:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:27,797 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 325 transitions. [2020-09-25 08:38:27,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:38:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 325 transitions. [2020-09-25 08:38:27,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 08:38:27,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:27,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:27,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:38:27,801 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:27,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:27,802 INFO L82 PathProgramCache]: Analyzing trace with hash 984495674, now seen corresponding path program 1 times [2020-09-25 08:38:27,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:27,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44680140] [2020-09-25 08:38:27,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:27,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:28,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:32,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 08:38:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:38:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:38:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:32,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:38:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:38:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 08:38:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:33,170 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:33,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:33,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 08:38:33,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:33,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:33,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:33,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:33,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:33,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:33,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:33,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:33,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:33,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:33,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:33,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:33,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:33,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:33,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:38:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:38:33,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:38:33,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:38:33,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:38:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:33,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:38:33,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:38:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:38:33,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:38:33,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:38:33,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:38:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:33,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:33,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:38:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:38:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:33,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:38:33,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:33,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 08:38:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:33,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:33,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:33,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:33,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:33,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:33,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:33,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:33,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:33,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:33,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:33,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:33,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44680140] [2020-09-25 08:38:33,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:33,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:38:33,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957362273] [2020-09-25 08:38:33,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:38:33,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:33,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:38:33,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:38:33,582 INFO L87 Difference]: Start difference. First operand 299 states and 325 transitions. Second operand 8 states. [2020-09-25 08:38:34,283 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:36,610 INFO L93 Difference]: Finished difference Result 1035 states and 1390 transitions. [2020-09-25 08:38:36,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 08:38:36,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 08:38:36,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:36,620 INFO L225 Difference]: With dead ends: 1035 [2020-09-25 08:38:36,621 INFO L226 Difference]: Without dead ends: 1032 [2020-09-25 08:38:36,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2020-09-25 08:38:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2020-09-25 08:38:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 402. [2020-09-25 08:38:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 08:38:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 444 transitions. [2020-09-25 08:38:36,707 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 444 transitions. Word has length 175 [2020-09-25 08:38:36,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:36,708 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 444 transitions. [2020-09-25 08:38:36,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:38:36,708 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 444 transitions. [2020-09-25 08:38:36,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-25 08:38:36,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:36,712 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2020-09-25 08:38:36,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:38:36,713 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:36,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:36,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1131872908, now seen corresponding path program 1 times [2020-09-25 08:38:36,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:36,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106440123] [2020-09-25 08:38:36,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:36,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:36,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:37,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:38,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking...