/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=DEEPEST --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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:40:13,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:40:13,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:40:13,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:40:13,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:40:13,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:40:13,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:40:13,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:40:13,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:40:13,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:40:13,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:40:13,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:40:13,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:40:13,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:40:13,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:40:13,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:40:13,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:40:13,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:40:13,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:40:13,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:40:13,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:40:13,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:40:13,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:40:13,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:40:13,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:40:13,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:40:13,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:40:13,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:40:13,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:40:13,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:40:13,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:40:13,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:40:13,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:40:13,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:40:13,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:40:13,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:40:13,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:40:13,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:40:13,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:40:13,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:40:13,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:40:13,295 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 00:40:13,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:40:13,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:40:13,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:40:13,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:40:13,337 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:40:13,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:40:13,338 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:40:13,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:40:13,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:40:13,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:40:13,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:40:13,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:40:13,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:40:13,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:40:13,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:40:13,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:40:13,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:40:13,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:40:13,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:40:13,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:40:13,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:40:13,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:40:13,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:40:13,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:40:13,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:40:13,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:40:13,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:40:13,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:40:13,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:40:13,342 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:40:13,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:40:13,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:40:13,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:40:13,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:40:13,882 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:40:13,884 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2020-09-25 00:40:13,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b5045e04/d013f22c5477497f87b47667ab64cbb6/FLAGca94940a3 [2020-09-25 00:40:14,580 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:40:14,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2020-09-25 00:40:14,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b5045e04/d013f22c5477497f87b47667ab64cbb6/FLAGca94940a3 [2020-09-25 00:40:14,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b5045e04/d013f22c5477497f87b47667ab64cbb6 [2020-09-25 00:40:14,860 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:40:14,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:40:14,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:14,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:40:14,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:40:14,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14, skipping insertion in model container [2020-09-25 00:40:14,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:40:14,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:40:15,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:15,483 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:40:15,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:15,601 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:40:15,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15 WrapperNode [2020-09-25 00:40:15,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:15,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:40:15,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:40:15,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:40:15,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (1/1) ... [2020-09-25 00:40:15,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (1/1) ... [2020-09-25 00:40:15,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (1/1) ... [2020-09-25 00:40:15,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (1/1) ... [2020-09-25 00:40:15,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (1/1) ... [2020-09-25 00:40:15,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (1/1) ... [2020-09-25 00:40:15,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (1/1) ... [2020-09-25 00:40:15,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:40:15,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:40:15,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:40:15,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:40:15,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (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 00:40:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:40:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:40:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:40:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:40:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:40:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:40:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:40:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:40:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:40:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:40:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:40:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:40:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:40:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:40:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:40:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:40:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:40:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:40:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:40:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:40:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:40:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:40:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:40:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:40:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:40:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:40:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:40:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:40:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:40:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:40:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:40:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:40:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:40:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:40:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:40:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:40:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:40:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:40:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:40:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:40:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:40:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:40:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:40:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:40:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:40:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:40:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:40:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:40:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:40:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:40:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:40:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:40:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:40:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:40:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:40:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:40:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:40:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:40:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:40:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:40:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:40:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:40:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:40:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:40:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:40:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:40:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:40:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:40:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:40:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:40:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:40:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:40:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:40:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:40:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:40:15,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:40:15,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:40:15,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:40:15,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:40:15,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:40:17,003 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:40:17,003 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:40:17,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:17 BoogieIcfgContainer [2020-09-25 00:40:17,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:40:17,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:40:17,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:40:17,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:40:17,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:40:14" (1/3) ... [2020-09-25 00:40:17,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520f7bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:17, skipping insertion in model container [2020-09-25 00:40:17,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:15" (2/3) ... [2020-09-25 00:40:17,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520f7bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:17, skipping insertion in model container [2020-09-25 00:40:17,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:17" (3/3) ... [2020-09-25 00:40:17,021 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2020-09-25 00:40:17,033 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:40:17,044 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:40:17,067 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:40:17,097 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:40:17,098 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:40:17,098 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:40:17,098 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:40:17,098 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:40:17,098 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:40:17,098 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:40:17,098 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:40:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 00:40:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 00:40:17,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:17,145 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 00:40:17,146 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:17,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1187069653, now seen corresponding path program 1 times [2020-09-25 00:40:17,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:17,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42673952] [2020-09-25 00:40:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:17,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:18,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:19,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 00:40:22,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:40:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 00:40:22,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 00:40:22,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:40:22,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:40:23,159 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:23,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:23,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 00:40:23,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:23,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:23,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:23,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:23,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:23,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:23,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:23,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:23,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:23,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:23,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:23,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:23,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:23,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:23,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:23,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:23,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:40:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:23,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:23,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:23,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:23,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:40:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:23,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:23,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:23,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:23,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:40:23,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:23,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:23,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:23,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:23,583 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 00:40:23,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42673952] [2020-09-25 00:40:23,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:23,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:40:23,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132565626] [2020-09-25 00:40:23,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:40:23,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:23,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:40:23,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:40:23,623 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 9 states. [2020-09-25 00:40:24,549 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:25,912 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:26,202 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:26,528 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:26,796 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:27,080 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:27,844 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:28,096 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:28,415 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:29,382 INFO L93 Difference]: Finished difference Result 583 states and 718 transitions. [2020-09-25 00:40:29,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:40:29,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 00:40:29,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:29,405 INFO L225 Difference]: With dead ends: 583 [2020-09-25 00:40:29,406 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 00:40:29,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:40:29,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 00:40:29,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 347. [2020-09-25 00:40:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-25 00:40:29,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 389 transitions. [2020-09-25 00:40:29,632 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 389 transitions. Word has length 148 [2020-09-25 00:40:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:29,639 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 389 transitions. [2020-09-25 00:40:29,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:40:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 389 transitions. [2020-09-25 00:40:29,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:40:29,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:29,656 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:29,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:40:29,657 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:29,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:29,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1297043568, now seen corresponding path program 1 times [2020-09-25 00:40:29,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:29,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262618261] [2020-09-25 00:40:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:30,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:30,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:33,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:33,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 00:40:34,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:40:34,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 00:40:34,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 00:40:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:34,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,030 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:35,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:35,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 00:40:35,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:35,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:40:35,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:35,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:35,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:35,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:35,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:35,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:35,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:35,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:35,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:35,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:40:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:40:35,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:35,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:40:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:40:35,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:35,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:35,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:35,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:40:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:40:35,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:40:35,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:40:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:35,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:35,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 00:40:35,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:40:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:35,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:35,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:35,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 00:40:35,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:40:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:35,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:35,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:40:35,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:35,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:35,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:40:35,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:40:35,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 00:40:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:35,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:35,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:35,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:40:35,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 00:40:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:35,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:35,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:35,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:35,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:35,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:35,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:40:35,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262618261] [2020-09-25 00:40:35,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:40:35,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:40:35,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035766540] [2020-09-25 00:40:35,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:40:35,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:35,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:40:35,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:40:35,725 INFO L87 Difference]: Start difference. First operand 347 states and 389 transitions. Second operand 11 states. [2020-09-25 00:40:37,307 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:37,611 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:37,976 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 00:40:38,300 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:38,591 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:40:38,815 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:39,677 INFO L93 Difference]: Finished difference Result 682 states and 833 transitions. [2020-09-25 00:40:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:40:39,682 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 212 [2020-09-25 00:40:39,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:39,688 INFO L225 Difference]: With dead ends: 682 [2020-09-25 00:40:39,688 INFO L226 Difference]: Without dead ends: 450 [2020-09-25 00:40:39,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:40:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-09-25 00:40:39,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 361. [2020-09-25 00:40:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-25 00:40:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2020-09-25 00:40:39,752 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 212 [2020-09-25 00:40:39,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:39,753 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2020-09-25 00:40:39,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:40:39,754 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2020-09-25 00:40:39,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:40:39,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:39,757 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:39,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:40:39,758 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:39,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1171839184, now seen corresponding path program 1 times [2020-09-25 00:40:39,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:39,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934794128] [2020-09-25 00:40:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:39,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:40,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:43,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 00:40:44,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:40:44,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 00:40:44,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 00:40:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:45,159 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:45,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:45,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 00:40:45,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:45,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:45,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:45,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:45,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:45,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:45,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:40:45,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:45,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:45,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:40:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:40:45,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:45,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:40:45,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:45,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:45,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:45,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:40:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:40:45,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:40:45,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:40:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:45,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 00:40:45,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:40:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:45,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:45,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:40:45,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:45,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:40:45,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:45,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:45,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:40:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:40:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 00:40:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:45,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:45,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 00:40:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:45,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:45,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:45,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:40:45,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934794128] [2020-09-25 00:40:45,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:40:45,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:40:45,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417186501] [2020-09-25 00:40:45,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:40:45,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:45,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:40:45,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:40:45,700 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 10 states. [2020-09-25 00:40:47,117 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:47,414 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:40:47,750 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:48,084 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:40:48,381 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:49,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:49,396 INFO L93 Difference]: Finished difference Result 702 states and 877 transitions. [2020-09-25 00:40:49,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:40:49,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-25 00:40:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:49,403 INFO L225 Difference]: With dead ends: 702 [2020-09-25 00:40:49,403 INFO L226 Difference]: Without dead ends: 456 [2020-09-25 00:40:49,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:40:49,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-25 00:40:49,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 367. [2020-09-25 00:40:49,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-09-25 00:40:49,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 415 transitions. [2020-09-25 00:40:49,471 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 415 transitions. Word has length 212 [2020-09-25 00:40:49,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:49,472 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 415 transitions. [2020-09-25 00:40:49,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:40:49,472 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 415 transitions. [2020-09-25 00:40:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:40:49,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:49,476 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:49,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:40:49,476 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:49,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1862333325, now seen corresponding path program 1 times [2020-09-25 00:40:49,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:49,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710104150] [2020-09-25 00:40:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:49,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:49,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:49,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:50,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 00:40:54,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:40:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:40:54,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 00:40:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:40:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:54,890 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:54,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:55,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 00:40:55,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:55,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:55,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:55,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:55,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:40:55,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:55,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:55,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:55,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:55,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:40:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:40:55,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:55,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:40:55,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:40:55,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:40:55,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:40:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:55,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:55,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:40:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:40:55,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:40:55,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 00:40:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:55,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:40:55,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:55,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:40:55,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:55,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:55,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:55,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:55,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 00:40:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:55,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:55,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 00:40:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:55,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:55,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:55,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:55,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:55,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:55,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:55,397 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:40:55,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710104150] [2020-09-25 00:40:55,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:40:55,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:40:55,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029887468] [2020-09-25 00:40:55,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:40:55,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:55,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:40:55,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:40:55,401 INFO L87 Difference]: Start difference. First operand 367 states and 415 transitions. Second operand 7 states. [2020-09-25 00:40:56,145 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:57,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:57,943 INFO L93 Difference]: Finished difference Result 900 states and 1123 transitions. [2020-09-25 00:40:57,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:40:57,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-25 00:40:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:57,949 INFO L225 Difference]: With dead ends: 900 [2020-09-25 00:40:57,949 INFO L226 Difference]: Without dead ends: 548 [2020-09-25 00:40:57,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:40:57,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-09-25 00:40:58,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 445. [2020-09-25 00:40:58,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-25 00:40:58,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 508 transitions. [2020-09-25 00:40:58,010 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 508 transitions. Word has length 212 [2020-09-25 00:40:58,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:58,011 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 508 transitions. [2020-09-25 00:40:58,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:40:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 508 transitions. [2020-09-25 00:40:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 00:40:58,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:58,014 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] [2020-09-25 00:40:58,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:40:58,015 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:58,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:58,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1941584724, now seen corresponding path program 1 times [2020-09-25 00:40:58,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:58,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864982556] [2020-09-25 00:40:58,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:00,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:00,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking...