/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=SMALLEST --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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:02:43,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:02:43,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:02:43,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:02:43,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:02:43,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:02:43,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:02:43,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:02:43,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:02:43,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:02:43,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:02:43,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:02:43,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:02:43,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:02:43,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:02:43,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:02:43,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:02:43,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:02:43,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:02:43,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:02:43,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:02:43,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:02:43,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:02:43,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:02:43,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:02:43,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:02:43,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:02:43,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:02:43,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:02:43,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:02:43,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:02:43,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:02:43,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:02:43,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:02:43,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:02:43,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:02:43,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:02:43,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:02:43,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:02:43,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:02:43,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:02:43,648 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 18:02:43,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:02:43,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:02:43,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:02:43,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:02:43,677 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:02:43,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:02:43,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:02:43,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:02:43,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:02:43,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:02:43,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:02:43,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:02:43,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:02:43,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:02:43,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:02:43,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:02:43,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:02:43,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:02:43,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:02:43,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:02:43,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:02:43,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:02:43,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:02:43,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:02:43,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:02:43,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:02:43,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:02:43,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:02:43,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:02:43,682 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:02:44,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:02:44,167 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:02:44,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:02:44,175 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:02:44,177 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:02:44,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2020-09-24 18:02:44,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d02a058a/b5561f9afdfe4b7080f200978a825681/FLAG809ef9327 [2020-09-24 18:02:44,855 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:02:44,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2020-09-24 18:02:44,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d02a058a/b5561f9afdfe4b7080f200978a825681/FLAG809ef9327 [2020-09-24 18:02:45,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d02a058a/b5561f9afdfe4b7080f200978a825681 [2020-09-24 18:02:45,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:02:45,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:02:45,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:45,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:02:45,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:02:45,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:45" (1/1) ... [2020-09-24 18:02:45,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:45, skipping insertion in model container [2020-09-24 18:02:45,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:45" (1/1) ... [2020-09-24 18:02:45,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:02:45,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:02:45,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:45,944 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:02:46,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:46,054 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:02:46,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46 WrapperNode [2020-09-24 18:02:46,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:46,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:02:46,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:02:46,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:02:46,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (1/1) ... [2020-09-24 18:02:46,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (1/1) ... [2020-09-24 18:02:46,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (1/1) ... [2020-09-24 18:02:46,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (1/1) ... [2020-09-24 18:02:46,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (1/1) ... [2020-09-24 18:02:46,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (1/1) ... [2020-09-24 18:02:46,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (1/1) ... [2020-09-24 18:02:46,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:02:46,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:02:46,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:02:46,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:02:46,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (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 18:02:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:02:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:02:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:02:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:02:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:02:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:02:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:02:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:02:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:02:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:02:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:02:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:02:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:02:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:02:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:02:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:02:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:02:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:02:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:02:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:02:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:02:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:02:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:02:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:02:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:02:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:02:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:02:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:02:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:02:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:02:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:02:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:02:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:02:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:02:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:02:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:02:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:02:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:02:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:02:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:02:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:02:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:02:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:02:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:02:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:02:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:02:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:02:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:02:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:02:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:02:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:02:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:02:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:02:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:02:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:02:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:02:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:02:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:02:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:02:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:02:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:02:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:02:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:02:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:02:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:02:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:02:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:02:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:02:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:02:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:02:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:02:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:02:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:02:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:02:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:02:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:02:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:02:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:02:47,457 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:02:47,457 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:02:47,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:47 BoogieIcfgContainer [2020-09-24 18:02:47,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:02:47,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:02:47,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:02:47,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:02:47,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:02:45" (1/3) ... [2020-09-24 18:02:47,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552d88fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:47, skipping insertion in model container [2020-09-24 18:02:47,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:46" (2/3) ... [2020-09-24 18:02:47,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552d88fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:47, skipping insertion in model container [2020-09-24 18:02:47,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:47" (3/3) ... [2020-09-24 18:02:47,475 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2020-09-24 18:02:47,487 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:02:47,499 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:02:47,519 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:02:47,548 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:02:47,548 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:02:47,548 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:02:47,549 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:02:47,549 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:02:47,549 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:02:47,549 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:02:47,549 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:02:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-09-24 18:02:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:02:47,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:47,597 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 18:02:47,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:47,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:47,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1324384437, now seen corresponding path program 1 times [2020-09-24 18:02:47,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:47,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020777888] [2020-09-24 18:02:47,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:48,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:48,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:51,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:02:53,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:02:53,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-24 18:02:53,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:02:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:02:53,621 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:53,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 18:02:53,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 18:02:53,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:53,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:53,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:53,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:02:53,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:53,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:02:53,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:53,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:53,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:02:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:53,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:53,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:02:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:53,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:53,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:53,990 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 18:02:53,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020777888] [2020-09-24 18:02:53,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:53,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:02:53,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175003997] [2020-09-24 18:02:54,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:02:54,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:54,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:02:54,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:54,031 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-09-24 18:02:55,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:55,376 INFO L93 Difference]: Finished difference Result 372 states and 447 transitions. [2020-09-24 18:02:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:02:55,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:02:55,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:55,399 INFO L225 Difference]: With dead ends: 372 [2020-09-24 18:02:55,400 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 18:02:55,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 18:02:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 203. [2020-09-24 18:02:55,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-24 18:02:55,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-09-24 18:02:55,510 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 142 [2020-09-24 18:02:55,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:55,511 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-09-24 18:02:55,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:02:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-09-24 18:02:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:02:55,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:55,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:55,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:02:55,518 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:55,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:55,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1257316615, now seen corresponding path program 1 times [2020-09-24 18:02:55,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:55,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177960628] [2020-09-24 18:02:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:57,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:58,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:03:00,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:03:00,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-09-24 18:03:00,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:03:00,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:03:00,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:01,027 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:01,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:01,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:01,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:01,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:03:01,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:01,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:01,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:01,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:01,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:01,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:01,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:01,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:01,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:01,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:01,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:01,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:01,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:01,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:01,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:01,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:01,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:03:01,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:01,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:01,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:01,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:01,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:01,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:01,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:01,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:03:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:01,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:01,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:01,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:01,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:01,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:01,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:03:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:01,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:01,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:01,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:01,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:01,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:01,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:01,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:01,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:01,279 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 18:03:01,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177960628] [2020-09-24 18:03:01,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:01,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:03:01,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520098591] [2020-09-24 18:03:01,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:03:01,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:01,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:03:01,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:03:01,287 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 4 states. [2020-09-24 18:03:01,986 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:03:02,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:02,596 INFO L93 Difference]: Finished difference Result 276 states and 308 transitions. [2020-09-24 18:03:02,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:03:02,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:03:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:02,605 INFO L225 Difference]: With dead ends: 276 [2020-09-24 18:03:02,605 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 18:03:02,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:03:02,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 18:03:02,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2020-09-24 18:03:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 18:03:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 204 transitions. [2020-09-24 18:03:02,675 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 204 transitions. Word has length 143 [2020-09-24 18:03:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:02,676 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 204 transitions. [2020-09-24 18:03:02,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:03:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 204 transitions. [2020-09-24 18:03:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 18:03:02,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:02,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:02,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:03:02,686 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:02,687 INFO L82 PathProgramCache]: Analyzing trace with hash 349563729, now seen corresponding path program 1 times [2020-09-24 18:03:02,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:02,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248228166] [2020-09-24 18:03:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:02,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:03,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:03,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:05,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:07,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:03:07,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:03:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 18:03:07,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:03:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:03:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,022 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:08,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:08,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 18:03:08,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:08,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:03:08,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:08,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:03:08,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:08,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:08,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:08,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:03:08,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:03:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:03:08,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:08,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:08,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:03:08,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:03:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:08,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:03:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:08,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:08,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,239 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 18:03:08,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248228166] [2020-09-24 18:03:08,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:08,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:03:08,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99497940] [2020-09-24 18:03:08,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:03:08,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:08,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:03:08,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:03:08,242 INFO L87 Difference]: Start difference. First operand 193 states and 204 transitions. Second operand 5 states. [2020-09-24 18:03:08,921 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:10,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:10,266 INFO L93 Difference]: Finished difference Result 421 states and 487 transitions. [2020-09-24 18:03:10,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:03:10,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 18:03:10,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:10,274 INFO L225 Difference]: With dead ends: 421 [2020-09-24 18:03:10,274 INFO L226 Difference]: Without dead ends: 338 [2020-09-24 18:03:10,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:03:10,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-24 18:03:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 260. [2020-09-24 18:03:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-24 18:03:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 281 transitions. [2020-09-24 18:03:10,327 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 281 transitions. Word has length 156 [2020-09-24 18:03:10,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:10,328 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 281 transitions. [2020-09-24 18:03:10,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:03:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 281 transitions. [2020-09-24 18:03:10,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 18:03:10,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:10,331 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] [2020-09-24 18:03:10,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:03:10,331 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:10,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:10,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1568584818, now seen corresponding path program 1 times [2020-09-24 18:03:10,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:10,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731161541] [2020-09-24 18:03:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:10,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:11,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:11,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 18:03:15,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:03:15,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 18:03:15,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:03:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 18:03:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 18:03:15,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,775 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:15,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:15,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 18:03:15,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:15,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:15,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:15,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:15,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:15,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:15,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:15,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:15,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:15,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:15,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:03:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:03:15,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:15,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:15,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:15,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:03:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:15,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:15,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:03:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:03:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:15,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:03:15,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:15,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:03:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:15,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:15,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:03:15,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:03:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:15,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:16,061 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 18:03:16,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731161541] [2020-09-24 18:03:16,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:16,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:03:16,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702348507] [2020-09-24 18:03:16,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:03:16,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:16,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:03:16,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:03:16,064 INFO L87 Difference]: Start difference. First operand 260 states and 281 transitions. Second operand 9 states. [2020-09-24 18:03:16,762 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:17,971 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:03:18,380 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:03:18,732 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:19,129 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:03:19,454 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:19,772 INFO L93 Difference]: Finished difference Result 447 states and 515 transitions. [2020-09-24 18:03:19,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:03:19,773 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2020-09-24 18:03:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:19,774 INFO L225 Difference]: With dead ends: 447 [2020-09-24 18:03:19,774 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:03:19,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:03:19,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:03:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:03:19,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:03:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:03:19,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2020-09-24 18:03:19,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:19,779 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:03:19,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:03:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:03:19,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:03:19,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:03:19,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:03:19,985 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:03:20,120 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-24 18:03:20,291 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:20,455 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:20,622 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:20,787 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:20,955 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:21,306 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:03:21,633 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:03:21,892 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 18:03:22,232 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:03:22,390 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:03:22,507 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:03:22,661 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:22,817 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:22,973 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:23,291 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:03:23,616 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:03:23,859 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 18:03:24,187 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:03:24,494 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:03:24,794 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:03:25,113 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:03:25,254 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:25,405 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:25,555 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:25,704 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:25,858 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:26,021 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:26,176 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:26,326 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:26,428 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-24 18:03:26,578 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:26,728 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:26,879 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:27,024 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:27,186 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:27,331 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:27,481 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:27,629 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:27,778 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:27,926 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:28,080 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:28,235 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:28,388 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:28,548 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:28,733 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:28,885 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:29,040 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:29,197 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:29,350 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:29,500 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:29,803 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:03:30,127 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:03:30,420 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:03:30,570 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:30,903 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:03:31,118 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:03:31,331 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:03:31,698 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:03:31,926 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:03:32,130 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:03:32,343 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:03:32,711 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:03:32,862 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-24 18:03:33,062 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:33,256 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:03:33,449 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:03:33,826 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:03:34,042 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:03:34,237 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:03:34,644 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:03:34,861 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:03:35,081 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:03:35,467 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:03:35,683 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:03:35,877 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 11