/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:03:53,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:03:53,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:03:53,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:03:53,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:03:53,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:03:53,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:03:53,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:03:53,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:03:53,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:03:53,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:03:53,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:03:53,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:03:53,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:03:53,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:03:53,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:03:53,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:03:53,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:03:53,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:03:53,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:03:53,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:03:53,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:03:53,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:03:53,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:03:53,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:03:53,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:03:53,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:03:53,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:03:53,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:03:53,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:03:53,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:03:53,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:03:53,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:03:53,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:03:53,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:03:53,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:03:53,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:03:53,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:03:53,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:03:53,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:03:53,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:03:53,254 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 04:03:53,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:03:53,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:03:53,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:03:53,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:03:53,300 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:03:53,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:03:53,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:03:53,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:03:53,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:03:53,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:03:53,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:03:53,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:03:53,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:03:53,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:03:53,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:03:53,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:03:53,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:03:53,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:03:53,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:03:53,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:03:53,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:03:53,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:03:53,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:03:53,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:03:53,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:03:53,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:03:53,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:03:53,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:03:53,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:03:53,307 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:03:53,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:03:53,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:03:53,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:03:53,820 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:03:53,820 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:03:53,821 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 04:03:53,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92d1e7e8e/4bea275a6b76446aba8fde113b3821b9/FLAG77349f9ca [2020-09-25 04:03:54,534 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:03:54,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 04:03:54,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92d1e7e8e/4bea275a6b76446aba8fde113b3821b9/FLAG77349f9ca [2020-09-25 04:03:54,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92d1e7e8e/4bea275a6b76446aba8fde113b3821b9 [2020-09-25 04:03:54,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:03:54,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:03:54,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:03:54,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:03:54,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:03:54,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:03:54" (1/1) ... [2020-09-25 04:03:54,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14924135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:54, skipping insertion in model container [2020-09-25 04:03:54,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:03:54" (1/1) ... [2020-09-25 04:03:54,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:03:54,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:03:55,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:03:55,455 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:03:55,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:03:55,572 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:03:55,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55 WrapperNode [2020-09-25 04:03:55,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:03:55,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:03:55,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:03:55,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:03:55,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (1/1) ... [2020-09-25 04:03:55,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (1/1) ... [2020-09-25 04:03:55,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (1/1) ... [2020-09-25 04:03:55,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (1/1) ... [2020-09-25 04:03:55,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (1/1) ... [2020-09-25 04:03:55,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (1/1) ... [2020-09-25 04:03:55,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (1/1) ... [2020-09-25 04:03:55,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:03:55,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:03:55,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:03:55,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:03:55,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (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 04:03:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:03:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:03:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:03:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:03:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:03:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:03:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:03:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:03:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:03:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:03:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:03:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:03:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:03:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:03:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:03:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:03:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:03:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:03:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:03:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:03:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:03:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:03:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:03:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:03:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:03:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:03:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:03:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:03:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:03:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:03:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:03:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:03:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:03:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:03:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:03:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:03:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:03:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:03:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:03:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:03:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:03:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:03:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:03:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:03:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:03:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:03:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:03:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:03:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:03:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:03:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:03:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:03:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:03:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:03:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:03:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:03:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:03:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:03:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:03:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:03:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:03:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:03:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:03:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:03:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:03:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:03:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:03:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:03:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:03:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:03:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:03:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:03:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:03:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:03:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:03:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:03:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:03:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:03:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:03:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:03:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:03:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:03:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:03:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:03:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:03:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:03:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:03:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:03:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:03:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:03:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:03:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:03:56,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:03:56,992 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:03:57,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:03:57 BoogieIcfgContainer [2020-09-25 04:03:57,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:03:57,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:03:57,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:03:57,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:03:57,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:03:54" (1/3) ... [2020-09-25 04:03:57,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5665460f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:03:57, skipping insertion in model container [2020-09-25 04:03:57,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:55" (2/3) ... [2020-09-25 04:03:57,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5665460f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:03:57, skipping insertion in model container [2020-09-25 04:03:57,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:03:57" (3/3) ... [2020-09-25 04:03:57,018 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-25 04:03:57,032 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:03:57,045 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:03:57,072 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:03:57,111 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:03:57,111 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:03:57,111 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:03:57,112 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:03:57,112 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:03:57,112 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:03:57,112 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:03:57,112 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:03:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 04:03:57,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 04:03:57,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:03:57,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:57,168 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:03:57,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:03:57,178 INFO L82 PathProgramCache]: Analyzing trace with hash 2110285638, now seen corresponding path program 1 times [2020-09-25 04:03:57,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:03:57,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313958563] [2020-09-25 04:03:57,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:03:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:57,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:58,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:59,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:02,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:02,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 04:04:02,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:04:02,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 04:04:02,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:02,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:04:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:02,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:04:03,114 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:03,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 04:04:03,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:04:03,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:03,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:03,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:03,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:03,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:03,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:03,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:03,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:03,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:03,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:03,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:03,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:03,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:03,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:03,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:03,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:03,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:04:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 04:04:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:03,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:03,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:03,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:04:03,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:04:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:03,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:03,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:03,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:03,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:03,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:03,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:03,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:03,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:03,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:03,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:03,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:04:03,602 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 04:04:03,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313958563] [2020-09-25 04:04:03,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:03,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:04:03,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094927219] [2020-09-25 04:04:03,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:04:03,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:03,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:04:03,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:04:03,649 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 4 states. [2020-09-25 04:04:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:05,317 INFO L93 Difference]: Finished difference Result 442 states and 524 transitions. [2020-09-25 04:04:05,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:04:05,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 04:04:05,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:05,351 INFO L225 Difference]: With dead ends: 442 [2020-09-25 04:04:05,351 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 04:04:05,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:04:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 04:04:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2020-09-25 04:04:05,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 04:04:05,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 04:04:05,516 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 148 [2020-09-25 04:04:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:05,517 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 04:04:05,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:04:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 04:04:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 04:04:05,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:05,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:04:05,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:04:05,523 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:05,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:05,527 INFO L82 PathProgramCache]: Analyzing trace with hash 16536712, now seen corresponding path program 1 times [2020-09-25 04:04:05,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:05,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200848703] [2020-09-25 04:04:05,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:05,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:05,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:07,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:08,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:09,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:10,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:10,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 04:04:10,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:04:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 04:04:10,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:10,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:04:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:04:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:10,944 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:10,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:10,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:11,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 04:04:11,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:11,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:11,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:04:11,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:11,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:11,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:11,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:04:11,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:11,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:11,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:11,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 04:04:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:11,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:11,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:04:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:11,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:11,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:04:11,243 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 04:04:11,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200848703] [2020-09-25 04:04:11,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:11,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:04:11,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619629512] [2020-09-25 04:04:11,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:04:11,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:11,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:04:11,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:04:11,250 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 5 states. [2020-09-25 04:04:11,953 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:04:12,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:12,843 INFO L93 Difference]: Finished difference Result 367 states and 415 transitions. [2020-09-25 04:04:12,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:04:12,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 04:04:12,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:12,849 INFO L225 Difference]: With dead ends: 367 [2020-09-25 04:04:12,849 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 04:04:12,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:04:12,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 04:04:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 230. [2020-09-25 04:04:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 04:04:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 04:04:12,927 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 149 [2020-09-25 04:04:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:12,928 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 04:04:12,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:04:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 04:04:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 04:04:12,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:12,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:04:12,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:04:12,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:12,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:12,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1541802730, now seen corresponding path program 1 times [2020-09-25 04:04:12,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:12,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777169477] [2020-09-25 04:04:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:13,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:13,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:14,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:14,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 04:04:18,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:04:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 04:04:18,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 04:04:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:04:18,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,399 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:18,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:18,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 04:04:18,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:18,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:18,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:18,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:18,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:04:18,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:18,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:18,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:18,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:04:18,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:04:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:18,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:18,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:04:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:04:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:18,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:18,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:04:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:18,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:18,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:18,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,737 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 04:04:18,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777169477] [2020-09-25 04:04:18,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:18,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:04:18,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016537886] [2020-09-25 04:04:18,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:04:18,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:18,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:04:18,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:04:18,747 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 6 states. [2020-09-25 04:04:19,286 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:04:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:20,283 INFO L93 Difference]: Finished difference Result 414 states and 480 transitions. [2020-09-25 04:04:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:04:20,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 04:04:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:20,288 INFO L225 Difference]: With dead ends: 414 [2020-09-25 04:04:20,289 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 04:04:20,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:04:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 04:04:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 230. [2020-09-25 04:04:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 04:04:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2020-09-25 04:04:20,328 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 162 [2020-09-25 04:04:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:20,329 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2020-09-25 04:04:20,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:04:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2020-09-25 04:04:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 04:04:20,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:20,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:04:20,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:04:20,333 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:20,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:20,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1425032231, now seen corresponding path program 1 times [2020-09-25 04:04:20,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:20,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770804521] [2020-09-25 04:04:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:20,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:20,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:21,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:22,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:22,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:22,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:25,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:25,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 04:04:25,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:04:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:04:25,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:25,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:04:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 04:04:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:04:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:25,844 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:25,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:25,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:25,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 04:04:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:26,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:26,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:26,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:26,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:26,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:26,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:26,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:04:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:26,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:26,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:04:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:04:26,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:04:26,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:04:26,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:04:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:04:26,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:04:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:26,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:04:26,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:04:26,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:04:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:26,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:26,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:26,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 04:04:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:26,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:26,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,252 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 04:04:26,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770804521] [2020-09-25 04:04:26,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:26,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:04:26,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635326936] [2020-09-25 04:04:26,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:04:26,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:26,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:04:26,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:04:26,258 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 8 states. [2020-09-25 04:04:27,021 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:04:28,651 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:04:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:29,533 INFO L93 Difference]: Finished difference Result 593 states and 710 transitions. [2020-09-25 04:04:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:04:29,534 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-09-25 04:04:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:29,541 INFO L225 Difference]: With dead ends: 593 [2020-09-25 04:04:29,542 INFO L226 Difference]: Without dead ends: 478 [2020-09-25 04:04:29,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:04:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-25 04:04:29,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 337. [2020-09-25 04:04:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 04:04:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 364 transitions. [2020-09-25 04:04:29,603 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 364 transitions. Word has length 170 [2020-09-25 04:04:29,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:29,603 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 364 transitions. [2020-09-25 04:04:29,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:04:29,604 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 364 transitions. [2020-09-25 04:04:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 04:04:29,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:29,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:04:29,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:04:29,607 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:29,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1572233247, now seen corresponding path program 1 times [2020-09-25 04:04:29,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:29,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799368747] [2020-09-25 04:04:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:30,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:30,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:31,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:34,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:34,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 04:04:34,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:04:34,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 04:04:34,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:34,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:34,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:04:34,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 04:04:34,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:04:34,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:35,044 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:35,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 04:04:35,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:35,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:35,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:35,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:35,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:35,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:35,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:35,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:35,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:35,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:35,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:35,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:35,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:35,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:35,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:35,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:04:35,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:04:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:35,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:35,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:04:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:04:35,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 04:04:35,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:04:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:35,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:04:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:04:35,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:04:35,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:04:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:35,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:04:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:04:35,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:04:35,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:35,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:35,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:35,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:04:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:35,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:04:35,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:04:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:04:35,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 04:04:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:35,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:35,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:35,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:04:35,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:35,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 04:04:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:35,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:35,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:35,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:35,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:35,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:04:35,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:35,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:35,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:04:35,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:35,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:04:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:35,506 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 04:04:35,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799368747] [2020-09-25 04:04:35,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:35,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:04:35,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743600450] [2020-09-25 04:04:35,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:04:35,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:35,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:04:35,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:04:35,508 INFO L87 Difference]: Start difference. First operand 337 states and 364 transitions. Second operand 11 states. [2020-09-25 04:04:36,083 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:04:37,775 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:04:38,104 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:04:38,433 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:04:38,738 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:04:39,162 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:04:39,527 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 04:04:39,867 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 04:04:40,214 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:04:40,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:40,992 INFO L93 Difference]: Finished difference Result 698 states and 824 transitions. [2020-09-25 04:04:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 04:04:40,992 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-25 04:04:40,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:40,997 INFO L225 Difference]: With dead ends: 698 [2020-09-25 04:04:40,997 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 04:04:40,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2020-09-25 04:04:41,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 04:04:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 335. [2020-09-25 04:04:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-25 04:04:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 360 transitions. [2020-09-25 04:04:41,062 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 360 transitions. Word has length 194 [2020-09-25 04:04:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:41,063 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 360 transitions. [2020-09-25 04:04:41,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:04:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 360 transitions. [2020-09-25 04:04:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 04:04:41,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:41,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:04:41,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:04:41,066 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:41,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:41,067 INFO L82 PathProgramCache]: Analyzing trace with hash -200465502, now seen corresponding path program 1 times [2020-09-25 04:04:41,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:41,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837664178] [2020-09-25 04:04:41,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:41,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:41,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking...