/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=0.8 --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_spec1_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:27:02,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:27:02,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:27:02,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:27:02,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:27:02,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:27:02,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:27:02,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:27:02,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:27:02,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:27:02,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:27:02,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:27:02,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:27:02,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:27:02,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:27:02,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:27:02,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:27:02,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:27:02,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:27:02,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:27:02,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:27:02,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:27:02,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:27:02,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:27:02,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:27:02,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:27:02,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:27:02,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:27:02,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:27:02,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:27:02,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:27:02,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:27:02,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:27:02,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:27:02,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:27:02,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:27:02,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:27:02,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:27:02,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:27:02,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:27:02,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:27:02,197 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 07:27:02,221 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:27:02,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:27:02,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:27:02,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:27:02,223 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:27:02,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:27:02,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:27:02,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:27:02,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:27:02,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:27:02,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:27:02,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:27:02,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:27:02,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:27:02,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:27:02,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:27:02,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:27:02,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:27:02,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:27:02,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:27:02,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:27:02,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:27:02,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:27:02,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:27:02,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:27:02,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:27:02,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:27:02,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:27:02,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:27:02,228 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:27:02,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:27:02,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:27:02,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:27:02,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:27:02,695 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:27:02,696 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-09-25 07:27:02,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cab2399f/e3bdb2bde34349dc81f9dbc0cbfe6d61/FLAG998007204 [2020-09-25 07:27:03,382 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:27:03,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-09-25 07:27:03,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cab2399f/e3bdb2bde34349dc81f9dbc0cbfe6d61/FLAG998007204 [2020-09-25 07:27:03,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cab2399f/e3bdb2bde34349dc81f9dbc0cbfe6d61 [2020-09-25 07:27:03,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:27:03,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:27:03,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:03,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:27:03,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:27:03,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:03" (1/1) ... [2020-09-25 07:27:03,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f61d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:03, skipping insertion in model container [2020-09-25 07:27:03,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:03" (1/1) ... [2020-09-25 07:27:03,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:27:03,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:27:04,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:04,272 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:27:04,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:04,478 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:27:04,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04 WrapperNode [2020-09-25 07:27:04,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:04,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:27:04,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:27:04,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:27:04,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (1/1) ... [2020-09-25 07:27:04,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (1/1) ... [2020-09-25 07:27:04,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (1/1) ... [2020-09-25 07:27:04,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (1/1) ... [2020-09-25 07:27:04,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (1/1) ... [2020-09-25 07:27:04,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (1/1) ... [2020-09-25 07:27:04,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (1/1) ... [2020-09-25 07:27:04,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:27:04,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:27:04,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:27:04,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:27:04,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (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 07:27:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:27:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:27:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:27:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:27:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:27:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:27:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:27:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:27:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:27:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:27:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:27:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:27:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:27:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:27:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:27:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:27:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:27:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:27:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:27:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:27:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:27:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:27:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:27:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:27:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:27:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:27:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:27:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:27:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:27:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:27:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:27:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:27:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:27:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:27:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:27:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:27:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:27:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:27:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:27:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:27:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:27:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:27:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:27:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:27:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:27:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:27:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:27:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:27:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:27:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:27:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:27:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:27:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:27:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:27:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:27:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:27:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:27:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:27:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:27:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:27:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:27:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:27:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:27:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:27:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:27:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:27:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:27:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:27:05,901 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:27:05,901 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:27:05,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:05 BoogieIcfgContainer [2020-09-25 07:27:05,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:27:05,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:27:05,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:27:05,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:27:05,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:27:03" (1/3) ... [2020-09-25 07:27:05,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120e3f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:05, skipping insertion in model container [2020-09-25 07:27:05,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:04" (2/3) ... [2020-09-25 07:27:05,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120e3f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:05, skipping insertion in model container [2020-09-25 07:27:05,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:05" (3/3) ... [2020-09-25 07:27:05,920 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-09-25 07:27:05,932 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:27:05,944 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:27:05,966 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:27:05,996 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:27:05,996 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:27:05,996 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:27:05,996 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:27:05,996 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:27:05,996 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:27:05,996 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:27:05,997 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:27:06,023 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 07:27:06,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:27:06,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:06,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:06,044 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:06,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:06,053 INFO L82 PathProgramCache]: Analyzing trace with hash -382402386, now seen corresponding path program 1 times [2020-09-25 07:27:06,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:06,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184495480] [2020-09-25 07:27:06,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:06,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:06,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:08,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:09,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:11,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:11,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:27:11,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 07:27:11,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:11,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:27:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 07:27:11,886 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:11,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:12,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:12,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:12,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 07:27:12,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:12,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:12,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:12,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:12,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:12,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:12,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:12,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:12,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:12,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:12,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:12,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:12,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:12,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:12,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:12,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:12,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:12,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:12,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:12,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:12,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:12,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:12,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:12,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:12,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:12,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:12,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:12,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:12,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:12,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:12,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:12,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:12,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:12,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:12,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:12,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:12,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:12,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:12,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:12,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:27:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:12,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:12,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:12,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:12,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:12,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:12,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:12,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:27:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:12,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:12,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:12,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:12,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:12,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:12,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:12,221 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 07:27:12,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184495480] [2020-09-25 07:27:12,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:12,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:27:12,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367354077] [2020-09-25 07:27:12,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:27:12,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:12,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:27:12,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:27:12,258 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-09-25 07:27:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:13,641 INFO L93 Difference]: Finished difference Result 484 states and 574 transitions. [2020-09-25 07:27:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:27:13,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:27:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:13,678 INFO L225 Difference]: With dead ends: 484 [2020-09-25 07:27:13,678 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 07:27:13,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:27:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 07:27:13,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 257. [2020-09-25 07:27:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 07:27:13,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-25 07:27:13,794 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 142 [2020-09-25 07:27:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:13,795 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-25 07:27:13,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:27:13,795 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-25 07:27:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:27:13,803 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:13,804 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] [2020-09-25 07:27:13,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:27:13,804 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:13,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:13,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1833447387, now seen corresponding path program 1 times [2020-09-25 07:27:13,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:13,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416341874] [2020-09-25 07:27:13,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:14,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:16,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:17,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:18,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:18,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:27:18,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-09-25 07:27:18,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:18,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:27:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,202 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:19,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:19,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:19,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:19,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:19,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 07:27:19,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:19,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:19,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:19,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:19,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:19,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:19,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:19,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:19,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:19,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:19,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:19,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:19,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:19,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:19,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:19,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:19,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:19,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:19,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:19,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:19,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:19,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:19,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:19,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:19,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:19,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:19,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:27:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:19,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:19,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:19,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:19,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:19,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:19,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:27:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:19,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:19,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:19,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:19,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:19,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:19,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:19,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:19,434 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 07:27:19,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416341874] [2020-09-25 07:27:19,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:19,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:27:19,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205335300] [2020-09-25 07:27:19,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:27:19,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:19,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:27:19,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:27:19,440 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 4 states. [2020-09-25 07:27:20,096 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:21,177 INFO L93 Difference]: Finished difference Result 388 states and 435 transitions. [2020-09-25 07:27:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:27:21,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:27:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:21,183 INFO L225 Difference]: With dead ends: 388 [2020-09-25 07:27:21,183 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 07:27:21,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:27:21,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 07:27:21,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 247. [2020-09-25 07:27:21,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 07:27:21,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions. [2020-09-25 07:27:21,236 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 143 [2020-09-25 07:27:21,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:21,236 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 265 transitions. [2020-09-25 07:27:21,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:27:21,237 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions. [2020-09-25 07:27:21,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 07:27:21,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:21,240 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] [2020-09-25 07:27:21,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:27:21,240 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:21,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:21,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1272206935, now seen corresponding path program 1 times [2020-09-25 07:27:21,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:21,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466017557] [2020-09-25 07:27:21,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:27:26,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:27:26,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 07:27:26,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:27:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:27:26,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:26,688 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:26,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:26,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 07:27:26,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:26,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:26,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:26,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:26,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:26,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:26,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:26,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:26,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:26,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:26,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:26,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:26,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:26,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:26,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:26,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:26,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:27:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:26,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:26,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:26,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:26,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:27:26,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:26,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:27:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:26,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:26,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:26,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:27:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:26,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:26,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:26,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:26,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:26,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:26,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:26,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:26,928 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 07:27:26,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466017557] [2020-09-25 07:27:26,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:26,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:27:26,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578040511] [2020-09-25 07:27:26,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:27:26,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:26,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:27:26,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:27:26,935 INFO L87 Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 5 states. [2020-09-25 07:27:27,462 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:29,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:29,298 INFO L93 Difference]: Finished difference Result 591 states and 680 transitions. [2020-09-25 07:27:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:27:29,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 07:27:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:29,307 INFO L225 Difference]: With dead ends: 591 [2020-09-25 07:27:29,307 INFO L226 Difference]: Without dead ends: 454 [2020-09-25 07:27:29,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 07:27:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-25 07:27:29,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 368. [2020-09-25 07:27:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-09-25 07:27:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 403 transitions. [2020-09-25 07:27:29,428 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 403 transitions. Word has length 156 [2020-09-25 07:27:29,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:29,431 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 403 transitions. [2020-09-25 07:27:29,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:27:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 403 transitions. [2020-09-25 07:27:29,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:27:29,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:29,436 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] [2020-09-25 07:27:29,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:27:29,436 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:29,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:29,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1170641190, now seen corresponding path program 1 times [2020-09-25 07:27:29,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:29,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013967032] [2020-09-25 07:27:29,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:29,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:31,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:34,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:34,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 07:27:34,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:27:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 07:27:34,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:34,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:27:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:27:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:27:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:34,946 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:34,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:34,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:35,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 07:27:35,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:35,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:35,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:35,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:35,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:35,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:35,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:35,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:35,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:35,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:35,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:35,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:35,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:35,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:35,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:35,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:35,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:35,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:35,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:35,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:35,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:27:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:35,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:27:35,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:35,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:27:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:35,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:27:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:35,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:35,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:27:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:35,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:35,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:35,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:27:35,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:35,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:35,251 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 07:27:35,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013967032] [2020-09-25 07:27:35,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:35,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:27:35,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715717682] [2020-09-25 07:27:35,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:27:35,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:35,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:27:35,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:27:35,255 INFO L87 Difference]: Start difference. First operand 368 states and 403 transitions. Second operand 9 states. [2020-09-25 07:27:35,956 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:37,255 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:37,627 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:27:38,001 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:38,359 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:27:38,692 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:39,489 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:39,852 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:40,214 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:40,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:40,960 INFO L93 Difference]: Finished difference Result 861 states and 1012 transitions. [2020-09-25 07:27:40,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:27:40,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 07:27:40,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:40,967 INFO L225 Difference]: With dead ends: 861 [2020-09-25 07:27:40,967 INFO L226 Difference]: Without dead ends: 603 [2020-09-25 07:27:40,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:27:40,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-09-25 07:27:41,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 534. [2020-09-25 07:27:41,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-09-25 07:27:41,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 602 transitions. [2020-09-25 07:27:41,055 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 602 transitions. Word has length 161 [2020-09-25 07:27:41,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:41,056 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 602 transitions. [2020-09-25 07:27:41,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:27:41,056 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 602 transitions. [2020-09-25 07:27:41,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 07:27:41,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:41,060 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:41,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:27:41,061 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:41,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:41,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1663472360, now seen corresponding path program 1 times [2020-09-25 07:27:41,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:41,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224337510] [2020-09-25 07:27:41,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:41,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:41,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:41,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-25 07:27:46,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:46,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:27:46,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 07:27:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:27:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,441 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:46,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 07:27:46,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:46,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:46,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:46,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:46,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:46,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:27:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:46,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:46,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:27:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:27:46,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 07:27:46,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:27:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:27:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:27:46,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:27:46,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:27:46,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:27:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:27:46,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:46,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:27:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 07:27:46,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:27:46,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:27:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:27:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:27:46,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:46,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:27:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:46,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:46,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 07:27:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:46,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:46,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 07:27:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:46,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:46,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 07:27:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:46,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:46,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:27:46,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224337510] [2020-09-25 07:27:46,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:46,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:27:46,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558993179] [2020-09-25 07:27:46,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:27:46,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:46,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:27:46,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:27:46,932 INFO L87 Difference]: Start difference. First operand 534 states and 602 transitions. Second operand 10 states. [2020-09-25 07:27:48,440 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:48,775 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:27:49,108 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:27:49,462 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:49,833 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:27:50,166 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:51,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:51,291 INFO L93 Difference]: Finished difference Result 1131 states and 1378 transitions. [2020-09-25 07:27:51,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:27:51,293 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 211 [2020-09-25 07:27:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:51,298 INFO L225 Difference]: With dead ends: 1131 [2020-09-25 07:27:51,299 INFO L226 Difference]: Without dead ends: 707 [2020-09-25 07:27:51,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:27:51,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-09-25 07:27:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 553. [2020-09-25 07:27:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-09-25 07:27:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 621 transitions. [2020-09-25 07:27:51,385 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 621 transitions. Word has length 211 [2020-09-25 07:27:51,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:51,386 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 621 transitions. [2020-09-25 07:27:51,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:27:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 621 transitions. [2020-09-25 07:27:51,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 07:27:51,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:51,390 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:51,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:27:51,390 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:51,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:51,391 INFO L82 PathProgramCache]: Analyzing trace with hash -91197816, now seen corresponding path program 1 times [2020-09-25 07:27:51,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:51,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769120173] [2020-09-25 07:27:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking...