/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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:03:39,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:03:39,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:03:39,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:03:39,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:03:39,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:03:39,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:03:39,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:03:39,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:03:39,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:03:39,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:03:39,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:03:39,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:03:39,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:03:39,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:03:39,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:03:39,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:03:39,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:03:39,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:03:39,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:03:40,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:03:40,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:03:40,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:03:40,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:03:40,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:03:40,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:03:40,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:03:40,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:03:40,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:03:40,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:03:40,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:03:40,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:03:40,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:03:40,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:03:40,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:03:40,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:03:40,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:03:40,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:03:40,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:03:40,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:03:40,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:03:40,039 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 18:03:40,075 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:03:40,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:03:40,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:03:40,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:03:40,077 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:03:40,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:03:40,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:03:40,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:03:40,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:03:40,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:03:40,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:03:40,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:03:40,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:03:40,079 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:03:40,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:03:40,080 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:03:40,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:03:40,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:03:40,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:03:40,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:03:40,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:03:40,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:03:40,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:03:40,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:03:40,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:03:40,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:03:40,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:03:40,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:03:40,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:03:40,082 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 18:03:40,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:03:40,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:03:40,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:03:40,546 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:03:40,546 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:03:40,547 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-24 18:03:40,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b672b207a/289a3a7195c945da9904ea75481e065a/FLAG95df9fce4 [2020-09-24 18:03:41,327 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:03:41,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-24 18:03:41,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b672b207a/289a3a7195c945da9904ea75481e065a/FLAG95df9fce4 [2020-09-24 18:03:41,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b672b207a/289a3a7195c945da9904ea75481e065a [2020-09-24 18:03:41,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:03:41,635 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:03:41,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:03:41,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:03:41,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:03:41,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:03:41" (1/1) ... [2020-09-24 18:03:41,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc54d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:41, skipping insertion in model container [2020-09-24 18:03:41,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:03:41" (1/1) ... [2020-09-24 18:03:41,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:03:41,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:03:42,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:03:42,080 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:03:42,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:03:42,370 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:03:42,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42 WrapperNode [2020-09-24 18:03:42,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:03:42,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:03:42,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:03:42,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:03:42,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (1/1) ... [2020-09-24 18:03:42,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (1/1) ... [2020-09-24 18:03:42,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (1/1) ... [2020-09-24 18:03:42,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (1/1) ... [2020-09-24 18:03:42,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (1/1) ... [2020-09-24 18:03:42,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (1/1) ... [2020-09-24 18:03:42,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (1/1) ... [2020-09-24 18:03:42,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:03:42,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:03:42,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:03:42,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:03:42,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (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 18:03:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:03:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:03:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:03:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:03:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:03:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:03:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:03:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:03:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:03:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:03:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:03:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:03:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:03:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:03:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:03:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:03:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:03:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:03:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:03:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:03:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:03:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:03:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:03:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:03:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:03:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:03:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:03:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:03:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:03:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:03:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:03:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:03:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:03:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:03:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:03:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:03:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:03:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:03:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:03:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:03:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:03:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:03:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:03:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:03:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:03:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:03:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:03:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:03:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:03:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:03:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:03:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:03:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:03:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:03:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:03:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:03:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:03:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:03:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:03:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:03:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:03:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:03:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:03:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:03:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:03:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:03:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:03:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:03:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:03:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:03:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:03:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:03:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:03:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:03:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:03:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:03:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:03:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:03:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:03:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:03:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:03:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:03:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:03:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:03:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:03:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:03:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:03:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:03:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:03:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:03:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:03:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:03:43,813 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:03:43,813 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:03:43,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:03:43 BoogieIcfgContainer [2020-09-24 18:03:43,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:03:43,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:03:43,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:03:43,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:03:43,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:03:41" (1/3) ... [2020-09-24 18:03:43,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24522bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:03:43, skipping insertion in model container [2020-09-24 18:03:43,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:42" (2/3) ... [2020-09-24 18:03:43,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24522bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:03:43, skipping insertion in model container [2020-09-24 18:03:43,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:03:43" (3/3) ... [2020-09-24 18:03:43,829 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2020-09-24 18:03:43,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:03:43,852 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:03:43,874 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:03:43,908 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:03:43,908 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:03:43,908 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:03:43,908 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:03:43,908 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:03:43,909 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:03:43,909 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:03:43,909 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:03:43,937 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-24 18:03:43,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:03:43,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:43,990 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 18:03:43,991 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:43,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:43,999 INFO L82 PathProgramCache]: Analyzing trace with hash -303745462, now seen corresponding path program 1 times [2020-09-24 18:03:44,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:44,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692628571] [2020-09-24 18:03:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:44,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:44,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:46,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:47,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:03:49,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:03:49,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 18:03:49,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:03:49,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 18:03:50,108 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:50,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:50,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:50,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 18:03:50,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:50,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:50,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:50,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:50,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:50,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:03:50,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:50,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:50,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:50,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:50,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:50,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:50,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:50,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:50,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:50,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:50,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:50,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:50,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:50,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:50,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:50,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:03:50,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:50,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:50,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:50,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:50,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:50,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:50,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:50,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:50,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:50,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:03:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:50,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:50,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:50,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:50,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:50,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:03:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:50,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:50,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:50,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:50,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:50,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:50,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:50,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:50,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:50,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:50,431 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 18:03:50,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692628571] [2020-09-24 18:03:50,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:50,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:03:50,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670567936] [2020-09-24 18:03:50,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:03:50,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:50,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:03:50,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:03:50,466 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-24 18:03:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:51,817 INFO L93 Difference]: Finished difference Result 436 states and 522 transitions. [2020-09-24 18:03:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:03:51,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:03:51,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:51,853 INFO L225 Difference]: With dead ends: 436 [2020-09-24 18:03:51,853 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 18:03:51,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:03:51,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 18:03:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-24 18:03:52,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 18:03:52,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 253 transitions. [2020-09-24 18:03:52,051 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 253 transitions. Word has length 142 [2020-09-24 18:03:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:52,053 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 253 transitions. [2020-09-24 18:03:52,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:03:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 253 transitions. [2020-09-24 18:03:52,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:03:52,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:52,065 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 18:03:52,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:03:52,071 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:52,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:52,071 INFO L82 PathProgramCache]: Analyzing trace with hash 2117068885, now seen corresponding path program 1 times [2020-09-24 18:03:52,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:52,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34094482] [2020-09-24 18:03:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:52,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:53,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:54,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:55,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:03:57,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:03:57,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-24 18:03:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:03:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:03:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:03:57,468 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:57,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:57,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:57,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:57,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:03:57,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:57,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:57,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:57,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:57,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:57,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:57,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:57,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:57,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:57,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:57,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:57,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:57,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:57,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:03:57,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:57,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:57,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:57,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:03:57,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:57,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:03:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:57,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:57,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:57,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:57,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:57,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:57,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:03:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:57,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:57,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:57,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:57,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:57,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:57,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:57,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:57,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:57,720 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 18:03:57,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34094482] [2020-09-24 18:03:57,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:57,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:03:57,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782736419] [2020-09-24 18:03:57,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:03:57,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:57,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:03:57,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:03:57,725 INFO L87 Difference]: Start difference. First operand 234 states and 253 transitions. Second operand 4 states. [2020-09-24 18:03:58,323 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:03:59,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:59,153 INFO L93 Difference]: Finished difference Result 343 states and 385 transitions. [2020-09-24 18:03:59,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:03:59,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:03:59,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:59,164 INFO L225 Difference]: With dead ends: 343 [2020-09-24 18:03:59,164 INFO L226 Difference]: Without dead ends: 259 [2020-09-24 18:03:59,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:03:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-24 18:03:59,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-24 18:03:59,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 18:03:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 240 transitions. [2020-09-24 18:03:59,271 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 240 transitions. Word has length 143 [2020-09-24 18:03:59,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:59,274 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 240 transitions. [2020-09-24 18:03:59,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:03:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 240 transitions. [2020-09-24 18:03:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 18:03:59,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:59,279 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 18:03:59,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:03:59,280 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:59,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:59,280 INFO L82 PathProgramCache]: Analyzing trace with hash -2011327752, now seen corresponding path program 1 times [2020-09-24 18:03:59,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:59,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892910047] [2020-09-24 18:03:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:59,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:00,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:01,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:04:04,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:04:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:04:04,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:04:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:04:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:04:04,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:04,712 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:04,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:04:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:04:04,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 18:04:04,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:04:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:04,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:04,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:04:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:04,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:04:04,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:04,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:04:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:04,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:04:04,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:04:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:04,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:04:04,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:04:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:04:04,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:04:04,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:04:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:04:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:04,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:04:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:04,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:04,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:04:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:04,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:05,018 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 18:04:05,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892910047] [2020-09-24 18:04:05,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:04:05,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:04:05,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872419293] [2020-09-24 18:04:05,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:04:05,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:04:05,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:04:05,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:04:05,024 INFO L87 Difference]: Start difference. First operand 224 states and 240 transitions. Second operand 5 states. [2020-09-24 18:04:05,549 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:04:06,977 INFO L93 Difference]: Finished difference Result 518 states and 601 transitions. [2020-09-24 18:04:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:04:06,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 18:04:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:04:06,986 INFO L225 Difference]: With dead ends: 518 [2020-09-24 18:04:06,986 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 18:04:06,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:04:06,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 18:04:07,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-24 18:04:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-24 18:04:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 361 transitions. [2020-09-24 18:04:07,102 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 361 transitions. Word has length 156 [2020-09-24 18:04:07,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:04:07,104 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 361 transitions. [2020-09-24 18:04:07,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:04:07,104 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 361 transitions. [2020-09-24 18:04:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:04:07,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:04:07,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:04:07,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:04:07,107 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:04:07,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:04:07,107 INFO L82 PathProgramCache]: Analyzing trace with hash -424012329, now seen corresponding path program 1 times [2020-09-24 18:04:07,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:04:07,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824261686] [2020-09-24 18:04:07,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:04:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:07,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:08,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:08,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:10,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 18:04:12,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:04:12,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 18:04:12,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:04:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 18:04:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:04:12,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:12,567 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:12,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:04:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:04:12,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 18:04:12,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:12,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:04:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:12,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:12,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:12,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:04:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:12,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:04:12,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:12,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:04:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:12,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:04:12,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:04:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:12,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:04:12,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:12,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:12,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:04:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:04:12,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:12,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:12,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:04:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:12,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:04:12,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:04:12,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:04:12,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 18:04:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:12,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:12,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:12,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:12,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:04:12,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:04:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:04:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:12,927 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 18:04:12,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824261686] [2020-09-24 18:04:12,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:04:12,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:04:12,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385536164] [2020-09-24 18:04:12,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:04:12,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:04:12,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:04:12,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:04:12,933 INFO L87 Difference]: Start difference. First operand 328 states and 361 transitions. Second operand 9 states. [2020-09-24 18:04:13,389 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:14,434 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:15,016 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:04:15,328 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:15,651 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:04:15,961 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:04:16,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:04:16,189 INFO L93 Difference]: Finished difference Result 527 states and 614 transitions. [2020-09-24 18:04:16,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:04:16,189 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 18:04:16,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:04:16,191 INFO L225 Difference]: With dead ends: 527 [2020-09-24 18:04:16,191 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:04:16,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:04:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:04:16,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:04:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:04:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:04:16,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-24 18:04:16,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:04:16,195 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:04:16,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:04:16,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:04:16,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:04:16,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:04:16,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:04:16,353 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:04:16,515 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:16,672 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:16,831 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:17,163 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:17,512 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:17,838 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:18,082 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 18:04:18,240 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:18,390 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:18,543 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:18,807 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-24 18:04:18,919 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:04:19,074 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:19,389 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:04:19,692 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:04:19,999 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:04:20,141 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:20,286 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:20,437 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:20,588 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:20,738 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:20,887 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:21,031 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:21,188 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:21,333 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:21,484 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:21,635 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:21,783 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:21,927 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:22,076 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:22,225 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:22,368 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:22,517 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:22,663 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:22,812 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:22,960 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:23,109 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:23,253 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:23,401 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:23,552 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:23,700 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:24,074 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:24,385 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:24,693 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:24,924 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 18:04:25,173 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:25,321 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:25,468 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:25,626 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:25,774 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:25,922 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:26,270 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:26,437 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:26,592 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:26,737 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:26,888 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:27,060 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:27,219 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:27,619 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-24 18:04:27,787 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:04:28,167 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 18:04:28,363 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:28,605 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:04:28,784 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-24 18:04:29,030 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:29,225 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:29,615 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 18:04:29,825 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:30,113 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:04:30,294 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:30,674 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:04:30,869 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:31,079 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1