/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:16:49,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:16:49,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:16:49,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:16:49,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:16:49,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:16:49,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:16:49,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:16:49,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:16:49,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:16:49,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:16:49,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:16:49,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:16:49,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:16:49,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:16:49,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:16:49,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:16:49,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:16:49,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:16:49,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:16:49,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:16:49,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:16:49,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:16:49,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:16:49,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:16:49,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:16:49,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:16:49,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:16:49,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:16:49,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:16:49,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:16:49,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:16:49,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:16:49,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:16:49,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:16:49,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:16:49,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:16:49,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:16:49,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:16:49,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:16:49,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:16:49,286 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 [2020-09-24 21:16:49,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:16:49,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:16:49,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:16:49,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:16:49,350 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:16:49,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:16:49,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:16:49,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:16:49,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:16:49,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:16:49,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:16:49,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:16:49,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:16:49,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:16:49,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:16:49,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:16:49,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:16:49,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:16:49,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:16:49,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:16:49,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:16:49,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:16:49,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:16:49,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:16:49,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:16:49,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:16:49,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:16:49,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:16:49,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:16:49,358 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:16:49,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:16:49,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:16:49,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:16:49,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:16:49,831 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:16:49,832 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-24 21:16:49,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f4e1a393/e96a7808b232464fa4055e0508de7825/FLAG2ab87f4e5 [2020-09-24 21:16:50,526 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:16:50,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-24 21:16:50,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f4e1a393/e96a7808b232464fa4055e0508de7825/FLAG2ab87f4e5 [2020-09-24 21:16:50,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f4e1a393/e96a7808b232464fa4055e0508de7825 [2020-09-24 21:16:50,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:16:50,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:16:50,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:16:50,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:16:50,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:16:50,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:16:50" (1/1) ... [2020-09-24 21:16:50,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:50, skipping insertion in model container [2020-09-24 21:16:50,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:16:50" (1/1) ... [2020-09-24 21:16:50,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:16:50,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:16:51,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:16:51,486 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:16:51,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:16:51,601 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:16:51,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51 WrapperNode [2020-09-24 21:16:51,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:16:51,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:16:51,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:16:51,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:16:51,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... [2020-09-24 21:16:51,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... [2020-09-24 21:16:51,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... [2020-09-24 21:16:51,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... [2020-09-24 21:16:51,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... [2020-09-24 21:16:51,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... [2020-09-24 21:16:51,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... [2020-09-24 21:16:51,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:16:51,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:16:51,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:16:51,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:16:51,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:16:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:16:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:16:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:16:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:16:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:16:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:16:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:16:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:16:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:16:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:16:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:16:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:16:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:16:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:16:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:16:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:16:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:16:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:16:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:16:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:16:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:16:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:16:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:16:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:16:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:16:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:16:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:16:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:16:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:16:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:16:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:16:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:16:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:16:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:16:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:16:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:16:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:16:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:16:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:16:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:16:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:16:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:16:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:16:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:16:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:16:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:16:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:16:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:16:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:16:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:16:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:16:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:16:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:16:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:16:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:16:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:16:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:16:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:16:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:16:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:16:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:16:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:16:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:16:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:16:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:16:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:16:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:16:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:16:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:16:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:16:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:16:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:16:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:16:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:16:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:16:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:16:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:16:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:16:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:16:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:16:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:16:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:16:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:16:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:16:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:16:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:16:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:16:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:16:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:16:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:16:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:16:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:16:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:16:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:16:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:16:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:16:53,014 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:16:53,014 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:16:53,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:16:53 BoogieIcfgContainer [2020-09-24 21:16:53,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:16:53,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:16:53,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:16:53,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:16:53,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:16:50" (1/3) ... [2020-09-24 21:16:53,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d62839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:16:53, skipping insertion in model container [2020-09-24 21:16:53,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:51" (2/3) ... [2020-09-24 21:16:53,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d62839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:16:53, skipping insertion in model container [2020-09-24 21:16:53,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:16:53" (3/3) ... [2020-09-24 21:16:53,031 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-09-24 21:16:53,044 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:16:53,056 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:16:53,081 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:16:53,120 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:16:53,120 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:16:53,120 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:16:53,120 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:16:53,120 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:16:53,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:16:53,121 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:16:53,121 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:16:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-24 21:16:53,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:16:53,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:53,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:53,175 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:53,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:53,183 INFO L82 PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times [2020-09-24 21:16:53,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:53,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538325603] [2020-09-24 21:16:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:53,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:53,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:54,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:55,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:55,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:58,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:58,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:16:58,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:16:58,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 21:16:58,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:16:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:16:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-24 21:16:58,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 21:16:59,076 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:59,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:59,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:59,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:59,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:59,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-24 21:16:59,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:59,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:59,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:16:59,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:59,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:59,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:59,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:59,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:59,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:59,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:59,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:59,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:59,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:59,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:59,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:59,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:59,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:59,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:59,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:59,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:59,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:59,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:59,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:59,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:59,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:59,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:59,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:59,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:59,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:59,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:59,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:59,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:59,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:59,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:59,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:59,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:59,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:59,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:59,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:59,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:59,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:59,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:59,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:59,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:16:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:59,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:59,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:59,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:59,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:59,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:59,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:59,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:59,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:59,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:59,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:59,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538325603] [2020-09-24 21:16:59,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:59,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:16:59,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151053339] [2020-09-24 21:16:59,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:16:59,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:59,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:16:59,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:16:59,775 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 8 states. [2020-09-24 21:17:00,335 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:01,499 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:01,861 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:02,192 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:02,547 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:02,918 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:03,864 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:04,225 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:04,626 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:05,760 INFO L93 Difference]: Finished difference Result 636 states and 786 transitions. [2020-09-24 21:17:05,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:17:05,763 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:17:05,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:05,803 INFO L225 Difference]: With dead ends: 636 [2020-09-24 21:17:05,804 INFO L226 Difference]: Without dead ends: 418 [2020-09-24 21:17:05,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:17:05,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-09-24 21:17:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 376. [2020-09-24 21:17:06,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-24 21:17:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 430 transitions. [2020-09-24 21:17:06,019 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 430 transitions. Word has length 142 [2020-09-24 21:17:06,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:06,020 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 430 transitions. [2020-09-24 21:17:06,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:17:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 430 transitions. [2020-09-24 21:17:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 21:17:06,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:06,027 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:06,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:17:06,028 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:06,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1842346287, now seen corresponding path program 1 times [2020-09-24 21:17:06,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:06,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217189764] [2020-09-24 21:17:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:06,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:06,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:11,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:11,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 21:17:11,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:17:11,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 21:17:11,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:17:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:17:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 21:17:11,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:11,426 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:11,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:11,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:11,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:11,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:11,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:11,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-24 21:17:11,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:17:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:11,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:11,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:11,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:11,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:11,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:11,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:11,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:11,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:11,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:11,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:11,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:11,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:11,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:11,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:11,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:11,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:11,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:11,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:11,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:11,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:11,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:11,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:11,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:11,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:11,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:17:11,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:11,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:11,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:11,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:11,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:11,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:11,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:11,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:11,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 21:17:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:11,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:11,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:12,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:12,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:12,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:17:12,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:17:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 922 [2020-09-24 21:17:12,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:17:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 21:17:12,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:12,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:17:13,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:13,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-09-24 21:17:13,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:17:13,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:17:13,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:13,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:13,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:13,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:13,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:13,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:13,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:13,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:17:13,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 21:17:13,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:17:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:17:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:17:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:17:13,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:17:13,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:17:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:17:13,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:17:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:13,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:13,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:17:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:17:13,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:17:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:13,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:13,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 21:17:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:13,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:13,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 21:17:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:13,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:13,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:13,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:13,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:13,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:13,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:13,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:17:13,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217189764] [2020-09-24 21:17:13,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:13,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 21:17:13,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595539223] [2020-09-24 21:17:13,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:17:13,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:13,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:17:13,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:17:13,957 INFO L87 Difference]: Start difference. First operand 376 states and 430 transitions. Second operand 14 states. [2020-09-24 21:17:14,502 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:15,675 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:16,042 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:16,386 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:16,767 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:17,110 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:17,722 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:18,062 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:18,541 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:19,758 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:20,117 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:20,429 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:20,746 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:21,090 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:21,420 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:21,742 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:23,304 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:23,615 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:23,916 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:24,218 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:24,555 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:24,884 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:25,199 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:25,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:25,896 INFO L93 Difference]: Finished difference Result 998 states and 1297 transitions. [2020-09-24 21:17:25,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 21:17:25,897 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 212 [2020-09-24 21:17:25,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:25,905 INFO L225 Difference]: With dead ends: 998 [2020-09-24 21:17:25,906 INFO L226 Difference]: Without dead ends: 663 [2020-09-24 21:17:25,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=228, Invalid=1254, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 21:17:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2020-09-24 21:17:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 570. [2020-09-24 21:17:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-09-24 21:17:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 653 transitions. [2020-09-24 21:17:26,013 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 653 transitions. Word has length 212 [2020-09-24 21:17:26,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:26,015 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 653 transitions. [2020-09-24 21:17:26,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:17:26,015 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 653 transitions. [2020-09-24 21:17:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 21:17:26,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:26,021 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:26,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:17:26,022 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:26,022 INFO L82 PathProgramCache]: Analyzing trace with hash -144761143, now seen corresponding path program 1 times [2020-09-24 21:17:26,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:26,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316356122] [2020-09-24 21:17:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:26,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:26,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:27,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:27,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:31,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-09-24 21:17:31,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:17:31,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 21:17:31,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:17:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-09-24 21:17:31,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:31,423 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:31,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:31,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:31,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:31,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-24 21:17:31,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:17:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:31,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:31,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:31,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:31,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:31,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:31,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:31,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:31,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:31,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:31,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:31,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:31,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:31,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:31,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:31,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:31,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:31,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:31,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:17:31,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:31,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:31,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:31,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:31,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:31,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:31,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 21:17:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:31,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:31,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:31,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 21:17:31,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 21:17:31,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 21:17:31,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:17:32,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:32,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 21:17:32,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:32,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:17:32,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 21:17:32,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:32,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:32,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:32,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:32,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:17:32,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:17:32,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:32,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:17:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:17:32,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:32,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:17:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:32,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:32,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:17:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 21:17:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:17:32,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:32,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:32,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:17:32,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 21:17:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:17:32,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:32,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:32,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:17:32,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 21:17:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:32,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 21:17:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:32,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:32,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-09-24 21:17:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:32,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:32,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:32,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:32,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:32,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:32,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-24 21:17:32,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316356122] [2020-09-24 21:17:32,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:17:32,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 21:17:32,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623297618] [2020-09-24 21:17:32,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:17:32,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:32,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:17:32,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:17:32,519 INFO L87 Difference]: Start difference. First operand 570 states and 653 transitions. Second operand 8 states. [2020-09-24 21:17:33,157 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:34,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:34,560 INFO L93 Difference]: Finished difference Result 1360 states and 1720 transitions. [2020-09-24 21:17:34,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:17:34,561 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2020-09-24 21:17:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:34,569 INFO L225 Difference]: With dead ends: 1360 [2020-09-24 21:17:34,570 INFO L226 Difference]: Without dead ends: 900 [2020-09-24 21:17:34,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:17:34,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-09-24 21:17:34,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 573. [2020-09-24 21:17:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-24 21:17:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 652 transitions. [2020-09-24 21:17:34,673 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 652 transitions. Word has length 255 [2020-09-24 21:17:34,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:34,674 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 652 transitions. [2020-09-24 21:17:34,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:17:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 652 transitions. [2020-09-24 21:17:34,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-24 21:17:34,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:34,682 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:34,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:17:34,682 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:34,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:34,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1428718075, now seen corresponding path program 1 times [2020-09-24 21:17:34,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:34,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938438551] [2020-09-24 21:17:34,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:35,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:35,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:36,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking...