/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:18:27,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:18:27,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:18:27,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:18:27,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:18:27,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:18:27,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:18:27,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:18:27,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:18:27,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:18:27,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:18:27,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:18:27,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:18:27,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:18:27,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:18:27,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:18:27,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:18:27,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:18:27,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:18:27,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:18:27,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:18:27,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:18:27,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:18:27,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:18:27,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:18:27,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:18:27,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:18:27,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:18:27,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:18:27,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:18:27,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:18:27,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:18:27,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:18:27,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:18:27,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:18:27,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:18:27,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:18:27,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:18:27,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:18:27,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:18:27,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:18:27,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:18:27,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:18:27,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:18:27,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:18:27,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:18:27,911 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:18:27,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:18:27,911 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:18:27,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:18:27,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:18:27,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:18:27,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:18:27,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:18:27,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:18:27,914 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:18:27,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:18:27,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:18:27,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:18:27,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:18:27,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:18:27,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:18:27,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:18:27,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:18:27,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:18:27,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:18:27,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:18:27,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:18:27,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:18:27,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:18:27,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:18:27,918 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:18:28,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:18:28,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:18:28,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:18:28,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:18:28,383 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:18:28,384 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 05:18:28,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8300c6f02/f206dcb98f1b4820b720d8aabafa0468/FLAG340737392 [2020-09-25 05:18:29,078 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:18:29,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 05:18:29,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8300c6f02/f206dcb98f1b4820b720d8aabafa0468/FLAG340737392 [2020-09-25 05:18:29,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8300c6f02/f206dcb98f1b4820b720d8aabafa0468 [2020-09-25 05:18:29,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:18:29,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:18:29,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:18:29,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:18:29,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:18:29,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:18:29" (1/1) ... [2020-09-25 05:18:29,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:29, skipping insertion in model container [2020-09-25 05:18:29,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:18:29" (1/1) ... [2020-09-25 05:18:29,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:18:29,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:18:29,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:18:30,001 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:18:30,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:18:30,143 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:18:30,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30 WrapperNode [2020-09-25 05:18:30,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:18:30,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:18:30,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:18:30,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:18:30,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... [2020-09-25 05:18:30,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... [2020-09-25 05:18:30,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... [2020-09-25 05:18:30,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... [2020-09-25 05:18:30,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... [2020-09-25 05:18:30,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... [2020-09-25 05:18:30,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... [2020-09-25 05:18:30,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:18:30,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:18:30,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:18:30,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:18:30,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:18:30,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:18:30,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:18:30,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:18:30,378 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:18:30,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:18:30,378 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:18:30,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:18:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:18:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:18:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:18:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:18:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:18:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:18:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:18:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:18:30,382 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:18:30,382 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:18:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:18:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:18:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:18:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:18:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:18:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:18:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:18:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:18:30,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:18:30,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:18:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:18:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:18:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:18:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:18:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:18:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:18:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:18:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:18:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:18:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:18:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:18:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:18:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:18:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:18:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:18:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:18:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:18:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:18:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:18:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:18:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:18:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:18:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:18:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:18:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:18:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:18:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:18:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:18:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:18:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:18:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:18:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:18:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:18:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:18:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:18:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:18:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:18:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:18:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:18:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:18:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:18:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:18:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:18:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:18:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:18:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:18:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:18:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:18:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:18:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:18:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:18:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:18:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:18:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:18:30,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:18:30,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:18:31,669 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:18:31,670 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:18:31,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:18:31 BoogieIcfgContainer [2020-09-25 05:18:31,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:18:31,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:18:31,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:18:31,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:18:31,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:18:29" (1/3) ... [2020-09-25 05:18:31,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a1c489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:18:31, skipping insertion in model container [2020-09-25 05:18:31,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:18:30" (2/3) ... [2020-09-25 05:18:31,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a1c489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:18:31, skipping insertion in model container [2020-09-25 05:18:31,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:18:31" (3/3) ... [2020-09-25 05:18:31,688 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-25 05:18:31,700 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:18:31,711 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:18:31,734 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:18:31,763 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:18:31,763 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:18:31,763 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:18:31,763 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:18:31,764 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:18:31,764 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:18:31,764 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:18:31,764 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:18:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-25 05:18:31,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:18:31,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:18:31,807 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] [2020-09-25 05:18:31,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:18:31,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:18:31,816 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-09-25 05:18:31,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:18:31,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713202280] [2020-09-25 05:18:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:18:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:32,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:33,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:34,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:18:37,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:18:37,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 05:18:37,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:18:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:18:37,643 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:18:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:18:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:37,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:18:37,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:37,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 05:18:37,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:18:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:37,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:37,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:18:37,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:37,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:18:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:37,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:37,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:37,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:18:37,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:37,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:37,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:18:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:37,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:37,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:37,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:18:37,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:37,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:18:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:37,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:37,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:37,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:37,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:37,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:18:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:37,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:37,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:37,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:18:37,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:18:37,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:37,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:18:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:37,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:37,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:37,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:37,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:37,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:18:37,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:37,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:18:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:18:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:18:38,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713202280] [2020-09-25 05:18:38,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:18:38,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:18:38,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292344526] [2020-09-25 05:18:38,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:18:38,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:18:38,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:18:38,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:18:38,088 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 3 states. [2020-09-25 05:18:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:18:39,364 INFO L93 Difference]: Finished difference Result 439 states and 524 transitions. [2020-09-25 05:18:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:18:39,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:18:39,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:18:39,386 INFO L225 Difference]: With dead ends: 439 [2020-09-25 05:18:39,386 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 05:18:39,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:18:39,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 05:18:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-09-25 05:18:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-25 05:18:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-09-25 05:18:39,495 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 142 [2020-09-25 05:18:39,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:18:39,496 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-09-25 05:18:39,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:18:39,497 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-09-25 05:18:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:18:39,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:18:39,502 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] [2020-09-25 05:18:39,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:18:39,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:18:39,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:18:39,503 INFO L82 PathProgramCache]: Analyzing trace with hash 730102889, now seen corresponding path program 1 times [2020-09-25 05:18:39,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:18:39,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820272893] [2020-09-25 05:18:39,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:18:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:39,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:39,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:41,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:43,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:44,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:44,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:18:44,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:18:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 05:18:44,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:44,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:18:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:18:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:18:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:44,901 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:18:44,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:18:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:44,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:45,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:45,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:18:45,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:45,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 05:18:45,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:45,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:45,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:45,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:45,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:45,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:45,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:18:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:45,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:45,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:45,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:45,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:45,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:45,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:45,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:45,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:18:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:45,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:45,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:45,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:45,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:45,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:45,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:45,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:45,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:45,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:45,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:45,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:45,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:18:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:45,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:45,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:45,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:45,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:18:45,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:45,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:45,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:45,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:18:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:45,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:45,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:45,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:45,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:45,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:45,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:45,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:45,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:18:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:45,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:45,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:45,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:45,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:45,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:45,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:45,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:18:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:45,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:45,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:18:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:45,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:45,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:45,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:45,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:45,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:45,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:18:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:45,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:18:45,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820272893] [2020-09-25 05:18:45,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:18:45,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:18:45,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449366621] [2020-09-25 05:18:45,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:18:45,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:18:45,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:18:45,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:18:45,133 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-09-25 05:18:45,824 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:18:46,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:18:46,689 INFO L93 Difference]: Finished difference Result 347 states and 389 transitions. [2020-09-25 05:18:46,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:18:46,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:18:46,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:18:46,695 INFO L225 Difference]: With dead ends: 347 [2020-09-25 05:18:46,695 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 05:18:46,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:18:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 05:18:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-09-25 05:18:46,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-25 05:18:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-09-25 05:18:46,741 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 143 [2020-09-25 05:18:46,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:18:46,742 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-09-25 05:18:46,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:18:46,742 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-09-25 05:18:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 05:18:46,745 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:18:46,745 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] [2020-09-25 05:18:46,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:18:46,746 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:18:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:18:46,746 INFO L82 PathProgramCache]: Analyzing trace with hash 807408229, now seen corresponding path program 1 times [2020-09-25 05:18:46,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:18:46,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295873765] [2020-09-25 05:18:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:18:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:46,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:47,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:48,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:48,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:51,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:51,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:18:51,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:18:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:18:51,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:51,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:18:51,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 05:18:51,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 05:18:51,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:52,160 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:18:52,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:18:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:52,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:52,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:52,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:18:52,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:52,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 05:18:52,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:52,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:18:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 05:18:52,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:52,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:18:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:52,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:52,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:52,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:52,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:52,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:18:52,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:52,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:52,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:18:52,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:52,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:18:52,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:52,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:18:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:52,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:52,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:52,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:18:52,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:52,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:18:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:18:52,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:52,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:18:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:52,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:52,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:52,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:52,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:52,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:18:52,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:52,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:18:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:18:52,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:52,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:18:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:52,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:52,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:52,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:18:52,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:52,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:52,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:18:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:18:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:18:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:18:52,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:18:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:52,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:52,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:52,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:52,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:52,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:52,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:52,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:18:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:52,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:52,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:18:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:52,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:52,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:52,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:18:52,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:18:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:18:52,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:52,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:18:52,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:18:52,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:18:52,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:18:52,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295873765] [2020-09-25 05:18:52,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:18:52,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:18:52,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140266252] [2020-09-25 05:18:52,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:18:52,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:18:52,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:18:52,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:18:52,585 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 4 states. [2020-09-25 05:18:53,032 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:18:54,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:18:54,432 INFO L93 Difference]: Finished difference Result 502 states and 571 transitions. [2020-09-25 05:18:54,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:18:54,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-25 05:18:54,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:18:54,442 INFO L225 Difference]: With dead ends: 502 [2020-09-25 05:18:54,442 INFO L226 Difference]: Without dead ends: 386 [2020-09-25 05:18:54,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:18:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-25 05:18:54,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 330. [2020-09-25 05:18:54,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-25 05:18:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 361 transitions. [2020-09-25 05:18:54,510 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 361 transitions. Word has length 152 [2020-09-25 05:18:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:18:54,511 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 361 transitions. [2020-09-25 05:18:54,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:18:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 361 transitions. [2020-09-25 05:18:54,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 05:18:54,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:18:54,515 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] [2020-09-25 05:18:54,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:18:54,515 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:18:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:18:54,516 INFO L82 PathProgramCache]: Analyzing trace with hash -501763232, now seen corresponding path program 1 times [2020-09-25 05:18:54,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:18:54,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866281543] [2020-09-25 05:18:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:18:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:54,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:55,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:57,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:18:59,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:18:59,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 05:18:59,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:18:59,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 05:18:59,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:18:59,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:18:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:18:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:18:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:18:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:18:59,930 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:18:59,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:18:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:18:59,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:00,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 05:19:00,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:19:00,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:00,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:00,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:00,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:00,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:00,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:00,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:00,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:00,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:00,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:19:00,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:00,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:00,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:00,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:00,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:19:00,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 05:19:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:19:00,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:19:00,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:19:00,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:19:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:19:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:19:00,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:19:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:00,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:00,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:00,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:00,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:19:00,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:19:00,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 05:19:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:00,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:00,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:00,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:00,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 05:19:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:00,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:00,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:00,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:00,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:00,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:00,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:00,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:19:00,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866281543] [2020-09-25 05:19:00,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:00,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:19:00,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139286606] [2020-09-25 05:19:00,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:19:00,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:00,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:19:00,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:19:00,314 INFO L87 Difference]: Start difference. First operand 330 states and 361 transitions. Second operand 6 states. [2020-09-25 05:19:00,964 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:02,529 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:19:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:03,057 INFO L93 Difference]: Finished difference Result 838 states and 977 transitions. [2020-09-25 05:19:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:19:03,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 05:19:03,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:03,065 INFO L225 Difference]: With dead ends: 838 [2020-09-25 05:19:03,065 INFO L226 Difference]: Without dead ends: 618 [2020-09-25 05:19:03,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:19:03,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-25 05:19:03,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 525. [2020-09-25 05:19:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-09-25 05:19:03,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 578 transitions. [2020-09-25 05:19:03,154 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 578 transitions. Word has length 160 [2020-09-25 05:19:03,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:03,155 INFO L479 AbstractCegarLoop]: Abstraction has 525 states and 578 transitions. [2020-09-25 05:19:03,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:19:03,155 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 578 transitions. [2020-09-25 05:19:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:19:03,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:03,157 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] [2020-09-25 05:19:03,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:19:03,158 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1615445203, now seen corresponding path program 1 times [2020-09-25 05:19:03,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:03,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672944343] [2020-09-25 05:19:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:03,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:04,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:04,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:06,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:19:08,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:08,569 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:08,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:08,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 05:19:08,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:08,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:08,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:08,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:08,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:08,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:08,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:08,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:08,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:08,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:08,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:08,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:08,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:19:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:19:08,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:08,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:19:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:19:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:08,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:08,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:19:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:19:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:08,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:08,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:08,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:08,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:08,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:19:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:19:08,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:08,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:19:08,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672944343] [2020-09-25 05:19:08,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:08,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:19:08,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369722259] [2020-09-25 05:19:08,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:19:08,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:08,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:19:08,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:19:08,866 INFO L87 Difference]: Start difference. First operand 525 states and 578 transitions. Second operand 9 states. [2020-09-25 05:19:09,389 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:10,695 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:19:11,026 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:19:11,380 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:19:11,744 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:19:12,060 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:19:12,579 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:12,901 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:19:13,235 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:19:13,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:13,846 INFO L93 Difference]: Finished difference Result 606 states and 685 transitions. [2020-09-25 05:19:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:19:13,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 05:19:13,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:13,853 INFO L225 Difference]: With dead ends: 606 [2020-09-25 05:19:13,853 INFO L226 Difference]: Without dead ends: 603 [2020-09-25 05:19:13,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:19:13,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-09-25 05:19:13,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 525. [2020-09-25 05:19:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-09-25 05:19:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 576 transitions. [2020-09-25 05:19:13,950 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 576 transitions. Word has length 161 [2020-09-25 05:19:13,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:13,951 INFO L479 AbstractCegarLoop]: Abstraction has 525 states and 576 transitions. [2020-09-25 05:19:13,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:19:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 576 transitions. [2020-09-25 05:19:13,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 05:19:13,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:13,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:19:13,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:19:13,956 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:13,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:13,957 INFO L82 PathProgramCache]: Analyzing trace with hash -20316787, now seen corresponding path program 1 times [2020-09-25 05:19:13,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:13,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050977325] [2020-09-25 05:19:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:14,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:14,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking...