/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_spec4_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:24:44,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:24:44,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:24:44,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:24:44,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:24:44,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:24:44,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:24:44,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:24:44,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:24:44,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:24:44,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:24:44,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:24:44,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:24:44,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:24:44,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:24:44,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:24:44,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:24:44,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:24:44,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:24:44,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:24:44,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:24:44,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:24:44,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:24:44,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:24:44,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:24:44,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:24:44,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:24:44,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:24:44,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:24:44,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:24:44,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:24:44,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:24:44,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:24:44,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:24:44,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:24:44,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:24:44,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:24:44,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:24:44,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:24:44,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:24:44,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:24:44,605 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 21:24:44,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:24:44,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:24:44,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:24:44,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:24:44,637 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:24:44,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:24:44,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:24:44,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:24:44,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:24:44,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:24:44,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:24:44,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:24:44,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:24:44,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:24:44,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:24:44,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:24:44,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:24:44,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:24:44,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:24:44,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:24:44,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:24:44,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:24:44,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:24:44,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:24:44,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:24:44,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:24:44,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:24:44,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:24:44,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:24:44,642 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 21:24:45,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:24:45,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:24:45,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:24:45,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:24:45,166 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:24:45,167 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-24 21:24:45,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b364bfb8a/db7e0a5f880a475e832ffdc31e061b39/FLAG34feef3ed [2020-09-24 21:24:45,864 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:24:45,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-24 21:24:45,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b364bfb8a/db7e0a5f880a475e832ffdc31e061b39/FLAG34feef3ed [2020-09-24 21:24:46,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b364bfb8a/db7e0a5f880a475e832ffdc31e061b39 [2020-09-24 21:24:46,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:24:46,183 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:24:46,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:24:46,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:24:46,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:24:46,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:46,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46, skipping insertion in model container [2020-09-24 21:24:46,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:46,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:24:46,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:24:46,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:24:46,806 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:24:46,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:24:46,937 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:24:46,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46 WrapperNode [2020-09-24 21:24:46,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:24:46,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:24:46,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:24:46,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:24:46,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:46,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:46,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:46,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:47,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:47,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:47,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (1/1) ... [2020-09-24 21:24:47,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:24:47,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:24:47,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:24:47,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:24:47,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (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 21:24:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:24:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:24:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:24:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:24:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:24:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:24:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:24:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:24:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:24:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:24:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:24:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:24:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:24:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:24:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:24:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:24:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:24:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:24:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:24:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:24:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:24:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:24:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:24:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:24:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:24:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:24:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:24:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:24:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:24:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:24:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:24:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:24:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:24:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:24:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:24:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:24:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:24:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:24:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:24:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:24:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:24:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:24:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:24:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:24:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:24:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:24:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:24:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:24:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:24:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:24:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:24:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:24:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:24:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:24:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:24:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:24:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:24:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:24:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:24:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:24:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:24:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:24:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:24:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:24:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:24:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:24:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:24:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:24:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:24:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:24:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:24:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:24:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:24:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:24:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:24:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:24:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:24:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:24:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:24:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:24:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:24:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:24:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:24:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:24:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:24:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:24:47,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:24:47,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:24:47,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:24:47,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:24:48,355 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:24:48,358 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:24:48,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:24:48 BoogieIcfgContainer [2020-09-24 21:24:48,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:24:48,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:24:48,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:24:48,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:24:48,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:24:46" (1/3) ... [2020-09-24 21:24:48,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e478cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:24:48, skipping insertion in model container [2020-09-24 21:24:48,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:46" (2/3) ... [2020-09-24 21:24:48,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e478cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:24:48, skipping insertion in model container [2020-09-24 21:24:48,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:24:48" (3/3) ... [2020-09-24 21:24:48,377 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-09-24 21:24:48,389 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:24:48,401 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:24:48,426 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:24:48,470 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:24:48,470 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:24:48,470 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:24:48,471 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:24:48,471 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:24:48,471 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:24:48,471 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:24:48,471 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:24:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 21:24:48,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:24:48,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:24:48,559 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 21:24:48,560 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:24:48,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:24:48,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1997357688, now seen corresponding path program 1 times [2020-09-24 21:24:48,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:24:48,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959247915] [2020-09-24 21:24:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:24:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:49,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:49,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:50,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:51,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:51,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:54,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:54,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:24:54,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:24:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 21:24:54,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:54,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:24:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:24:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 21:24:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 21:24:54,642 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:24:54,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:24:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:54,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:55,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:55,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:24:55,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:55,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-24 21:24:55,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:24:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:55,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:24:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:55,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:55,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:55,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:55,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:55,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:24:55,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:55,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:55,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:24:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:55,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:55,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:55,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:55,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:55,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:24:55,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:55,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:24:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:55,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:55,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:55,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:55,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:24:55,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:55,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:55,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:24:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:55,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:55,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:55,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:55,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:24:55,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:55,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:55,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:24:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:55,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:55,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:55,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:55,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:55,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:24:55,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:55,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:55,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:24:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:55,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:55,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:55,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:55,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:55,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:24:55,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:24:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:55,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:55,273 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 21:24:55,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959247915] [2020-09-24 21:24:55,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:24:55,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:24:55,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429571629] [2020-09-24 21:24:55,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:24:55,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:24:55,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:24:55,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:24:55,307 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 8 states. [2020-09-24 21:24:56,045 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:24:57,508 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 21:24:58,137 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 21:24:58,461 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:24:58,821 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:24:59,155 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:24:59,983 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:00,309 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:25:00,710 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:25:02,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:02,381 INFO L93 Difference]: Finished difference Result 599 states and 762 transitions. [2020-09-24 21:25:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:25:02,383 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:25:02,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:02,411 INFO L225 Difference]: With dead ends: 599 [2020-09-24 21:25:02,411 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 21:25:02,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:25:02,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 21:25:02,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 347. [2020-09-24 21:25:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-24 21:25:02,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 393 transitions. [2020-09-24 21:25:02,552 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 393 transitions. Word has length 142 [2020-09-24 21:25:02,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:02,553 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 393 transitions. [2020-09-24 21:25:02,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:25:02,554 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 393 transitions. [2020-09-24 21:25:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 21:25:02,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:02,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:02,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:25:02,559 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:02,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:02,559 INFO L82 PathProgramCache]: Analyzing trace with hash 362061811, now seen corresponding path program 1 times [2020-09-24 21:25:02,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:02,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692175584] [2020-09-24 21:25:02,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:02,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:02,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:03,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:05,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:05,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:07,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:07,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 21:25:07,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:25:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 21:25:07,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:25:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 21:25:07,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:07,959 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:07,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:08,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 21:25:08,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:25:08,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:08,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:08,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:08,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:08,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:08,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:08,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:25:08,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:08,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:08,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:08,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 21:25:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:25:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:25:08,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:25:08,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:25:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:25:08,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:25:08,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:08,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:25:08,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:08,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:08,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 21:25:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:25:08,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 21:25:08,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:25:08,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:25:08,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:25:08,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:25:08,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 21:25:08,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:25:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:25:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:25:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:08,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:08,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:25:08,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:08,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:25:08,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:08,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:08,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:08,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:08,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:08,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:08,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:25:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:08,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 21:25:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:08,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:08,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:08,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:08,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 21:25:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:08,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:25:08,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692175584] [2020-09-24 21:25:08,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:08,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:25:08,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286829155] [2020-09-24 21:25:08,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:25:08,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:08,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:25:08,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:25:08,823 INFO L87 Difference]: Start difference. First operand 347 states and 393 transitions. Second operand 12 states. [2020-09-24 21:25:09,388 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:10,612 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:10,961 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:11,300 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:25:11,618 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:11,947 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:25:12,247 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:13,753 INFO L93 Difference]: Finished difference Result 701 states and 893 transitions. [2020-09-24 21:25:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 21:25:13,754 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 205 [2020-09-24 21:25:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:13,761 INFO L225 Difference]: With dead ends: 701 [2020-09-24 21:25:13,761 INFO L226 Difference]: Without dead ends: 464 [2020-09-24 21:25:13,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:25:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-24 21:25:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 355. [2020-09-24 21:25:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 21:25:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 399 transitions. [2020-09-24 21:25:13,829 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 399 transitions. Word has length 205 [2020-09-24 21:25:13,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:13,830 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 399 transitions. [2020-09-24 21:25:13,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:25:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 399 transitions. [2020-09-24 21:25:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 21:25:13,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:13,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:13,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:25:13,833 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:13,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:13,833 INFO L82 PathProgramCache]: Analyzing trace with hash 246405350, now seen corresponding path program 1 times [2020-09-24 21:25:13,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:13,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457207192] [2020-09-24 21:25:13,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:13,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:14,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:14,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:18,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:18,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 21:25:18,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:25:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 21:25:18,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:25:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:25:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 21:25:18,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:19,285 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:19,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:19,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:19,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 21:25:19,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:25:19,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:19,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:19,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:19,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:19,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:19,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:19,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:19,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:19,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:19,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:19,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:19,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:19,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:19,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:19,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:19,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:19,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:25:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:19,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:19,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:19,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:19,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:19,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:19,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:19,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:25:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:19,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:25:19,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:19,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 21:25:19,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 21:25:19,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:19,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:19,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:25:19,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:19,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 21:25:19,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:19,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:19,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:19,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:19,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:19,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:20,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:20,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:20,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:25:20,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:20,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:20,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:20,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:20,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:20,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:20,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:20,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:20,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:20,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:20,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:20,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:20,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:20,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:20,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:20,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:20,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 21:25:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:20,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:20,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:20,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:20,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:20,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:20,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:20,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 21:25:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:20,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:20,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:20,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:20,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:20,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:20,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:20,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:20,116 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 21:25:20,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457207192] [2020-09-24 21:25:20,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:20,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:25:20,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311682022] [2020-09-24 21:25:20,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:25:20,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:20,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:25:20,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:25:20,122 INFO L87 Difference]: Start difference. First operand 355 states and 399 transitions. Second operand 9 states. [2020-09-24 21:25:20,614 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:21,930 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:22,213 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:22,551 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:22,859 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:23,139 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:24,061 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:24,352 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:25,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:25,502 INFO L93 Difference]: Finished difference Result 879 states and 1172 transitions. [2020-09-24 21:25:25,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 21:25:25,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-24 21:25:25,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:25,510 INFO L225 Difference]: With dead ends: 879 [2020-09-24 21:25:25,511 INFO L226 Difference]: Without dead ends: 634 [2020-09-24 21:25:25,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 21:25:25,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-24 21:25:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 552. [2020-09-24 21:25:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-09-24 21:25:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 682 transitions. [2020-09-24 21:25:25,601 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 682 transitions. Word has length 181 [2020-09-24 21:25:25,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:25,602 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 682 transitions. [2020-09-24 21:25:25,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:25:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 682 transitions. [2020-09-24 21:25:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-24 21:25:25,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:25,608 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 21:25:25,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:25:25,608 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:25,609 INFO L82 PathProgramCache]: Analyzing trace with hash 461006921, now seen corresponding path program 1 times [2020-09-24 21:25:25,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:25,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173141013] [2020-09-24 21:25:25,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:25,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 21:25:27,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:27,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1499 [2020-09-24 21:25:27,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:27,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 21:25:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:25:27,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,443 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:27,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:27,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 21:25:27,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:27,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:27,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:27,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:27,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:27,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:27,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:27,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:27,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:27,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 21:25:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 21:25:27,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 21:25:27,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:25:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:25:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:25:27,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 21:25:27,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:27,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:25:27,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:25:27,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:25:27,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:25:27,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:25:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:25:27,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:27,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:25:27,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:27,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:25:27,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:25:27,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:27,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:27,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:25:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:27,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:27,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:27,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:25:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 21:25:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:25:27,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:25:27,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 21:25:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:27,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:27,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:27,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-24 21:25:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:25:27,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:27,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:25:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 21:25:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:27,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:27,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:27,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:25:27,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:25:27,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 21:25:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:27,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:27,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:28,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:28,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:28,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:25:28,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:28,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:28,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:28,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:28,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:28,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:28,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:28,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:28,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:28,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:28,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:28,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:28,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:28,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:28,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:28,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 21:25:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:28,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:28,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:28,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:25:28,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:28,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:28,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:28,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:28,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:28,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:28,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:28,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:28,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:28,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:28,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:28,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:28,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:28,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:28,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 21:25:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:28,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:28,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:28,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:28,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:28,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:28,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:28,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:28,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:28,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:28,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 21:25:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:28,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:28,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:28,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:28,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:28,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:28,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:28,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:28,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:28,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:28,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 21:25:28,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173141013] [2020-09-24 21:25:28,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:25:28,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 21:25:28,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232262105] [2020-09-24 21:25:28,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:25:28,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:28,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:25:28,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:25:28,108 INFO L87 Difference]: Start difference. First operand 552 states and 682 transitions. Second operand 11 states. [2020-09-24 21:25:28,846 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:25:29,539 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:29,831 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:30,125 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:30,429 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:30,718 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:31,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:31,966 INFO L93 Difference]: Finished difference Result 1054 states and 1366 transitions. [2020-09-24 21:25:31,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 21:25:31,967 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2020-09-24 21:25:31,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:31,972 INFO L225 Difference]: With dead ends: 1054 [2020-09-24 21:25:31,973 INFO L226 Difference]: Without dead ends: 612 [2020-09-24 21:25:31,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:25:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-09-24 21:25:32,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 499. [2020-09-24 21:25:32,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-09-24 21:25:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 574 transitions. [2020-09-24 21:25:32,089 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 574 transitions. Word has length 241 [2020-09-24 21:25:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:32,089 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 574 transitions. [2020-09-24 21:25:32,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:25:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 574 transitions. [2020-09-24 21:25:32,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 21:25:32,097 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:32,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:32,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:25:32,098 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:32,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:32,099 INFO L82 PathProgramCache]: Analyzing trace with hash 999950629, now seen corresponding path program 1 times [2020-09-24 21:25:32,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:32,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401993380] [2020-09-24 21:25:32,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:32,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:32,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking...