/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=SMALLESTAMONGWIDE --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_spec3_product04.cil.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:10:32,112 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:10:32,116 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:10:32,149 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:10:32,150 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:10:32,151 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:10:32,152 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:10:32,154 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:10:32,156 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:10:32,157 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:10:32,158 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:10:32,160 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:10:32,160 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:10:32,161 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:10:32,162 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:10:32,163 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:10:32,164 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:10:32,165 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:10:32,167 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:10:32,170 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:10:32,171 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:10:32,173 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:10:32,174 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:10:32,175 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:10:32,178 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:10:32,178 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:10:32,178 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:10:32,179 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:10:32,180 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:10:32,181 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:10:32,181 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:10:32,182 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:10:32,183 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:10:32,184 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:10:32,185 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:10:32,185 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:10:32,186 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:10:32,186 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:10:32,186 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:10:32,187 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:10:32,188 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:10:32,189 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 13:10:32,215 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:10:32,216 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:10:32,217 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:10:32,217 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:10:32,217 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:10:32,218 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:10:32,218 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:10:32,218 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:10:32,218 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:10:32,218 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:10:32,219 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:10:32,219 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:10:32,219 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:10:32,219 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:10:32,219 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:10:32,220 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:10:32,220 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:10:32,220 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:10:32,220 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:10:32,220 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:10:32,221 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:10:32,221 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:10:32,221 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:10:32,221 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:10:32,221 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:10:32,222 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:10:32,222 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:10:32,222 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:10:32,222 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:10:32,222 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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
[2020-09-25 13:10:32,767 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:10:32,795 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:10:32,804 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:10:32,806 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:10:32,808 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:10:32,809 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c
[2020-09-25 13:10:32,903 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7453d521/062571b8585840f99c919bf6320102b4/FLAGa6e05ec8f
[2020-09-25 13:10:33,538 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:10:33,539 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c
[2020-09-25 13:10:33,554 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7453d521/062571b8585840f99c919bf6320102b4/FLAGa6e05ec8f
[2020-09-25 13:10:33,835 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7453d521/062571b8585840f99c919bf6320102b4
[2020-09-25 13:10:33,848 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:10:33,853 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:10:33,855 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:33,855 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:10:33,859 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:10:33,860 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:33" (1/1) ...
[2020-09-25 13:10:33,865 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:33, skipping insertion in model container
[2020-09-25 13:10:33,865 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:33" (1/1) ...
[2020-09-25 13:10:33,874 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:10:33,926 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:10:34,326 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:34,343 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:10:34,514 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:34,551 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:10:34,552 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34 WrapperNode
[2020-09-25 13:10:34,552 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:34,553 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:10:34,553 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:10:34,553 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:10:34,569 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (1/1) ...
[2020-09-25 13:10:34,570 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (1/1) ...
[2020-09-25 13:10:34,590 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (1/1) ...
[2020-09-25 13:10:34,591 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (1/1) ...
[2020-09-25 13:10:34,624 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (1/1) ...
[2020-09-25 13:10:34,636 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (1/1) ...
[2020-09-25 13:10:34,642 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (1/1) ...
[2020-09-25 13:10:34,650 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:10:34,651 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:10:34,651 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:10:34,651 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:10:34,653 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (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 13:10:34,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:10:34,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:10:34,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:34,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:10:34,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:10:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:10:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:10:34,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:10:34,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:10:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:10:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:10:34,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:10:34,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:10:34,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:10:34,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:10:34,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:10:34,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:10:34,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:10:34,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:10:34,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:10:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:10:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:10:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:10:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:10:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:10:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:10:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:10:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:10:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:10:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 13:10:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 13:10:34,759 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:10:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:10:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:10:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:10:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:10:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:10:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:10:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:10:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:10:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:10:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:10:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:10:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:10:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:10:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:10:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:10:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:10:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:10:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:10:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:10:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:10:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:10:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:10:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:10:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:10:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:10:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:10:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:10:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:10:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:10:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:10:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:10:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:10:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:10:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:10:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:10:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:10:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:10:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:10:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 13:10:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 13:10:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:10:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:10:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:10:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:10:34,767 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:10:35,922 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:10:35,922 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:10:35,930 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:35 BoogieIcfgContainer
[2020-09-25 13:10:35,930 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:10:35,931 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:10:35,932 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:10:35,935 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:10:35,936 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:33" (1/3) ...
[2020-09-25 13:10:35,937 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5b0c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:35, skipping insertion in model container
[2020-09-25 13:10:35,937 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:34" (2/3) ...
[2020-09-25 13:10:35,938 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5b0c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:35, skipping insertion in model container
[2020-09-25 13:10:35,938 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:35" (3/3) ...
[2020-09-25 13:10:35,940 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c
[2020-09-25 13:10:35,952 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:10:35,963 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:10:35,986 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:10:36,019 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:10:36,020 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:10:36,020 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:10:36,020 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:10:36,020 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:10:36,020 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:10:36,021 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:10:36,021 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:10:36,049 INFO  L276                IsEmpty]: Start isEmpty. Operand 271 states.
[2020-09-25 13:10:36,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:10:36,067 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:36,069 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]
[2020-09-25 13:10:36,069 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:36,076 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:36,076 INFO  L82        PathProgramCache]: Analyzing trace with hash 713311147, now seen corresponding path program 1 times
[2020-09-25 13:10:36,087 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:36,087 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792816629]
[2020-09-25 13:10:36,088 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:36,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:36,621 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:36,797 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:38,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:41,446 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:41,447 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:10:41,448 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:10:41,451 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5004
[2020-09-25 13:10:41,455 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:41,456 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:41,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 13:10:41,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 13:10:41,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-25 13:10:41,457 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 13:10:41,922 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:10:41,925 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:10:41,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,010 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,248 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,248 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:10:42,248 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,249 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 279
[2020-09-25 13:10:42,249 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,249 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:42,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:42,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 13:10:42,250 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,316 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:10:42,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,319 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,322 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,323 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:42,323 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,323 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:42,324 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,324 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:42,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:42,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:42,325 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,327 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:10:42,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,329 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,332 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,333 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:42,333 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,333 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:42,333 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,334 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:42,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:42,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:42,334 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,336 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:10:42,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,348 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,348 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:42,348 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,349 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 13:10:42,349 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,349 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:42,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:42,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:42,350 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,352 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:10:42,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,355 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,359 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:42,359 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,359 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:42,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,360 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:42,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:42,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:42,360 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,362 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:10:42,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,364 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,367 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,367 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:42,367 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,367 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:42,368 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,368 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:42,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:42,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:42,369 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,371 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:10:42,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,373 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,375 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,376 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:42,376 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,376 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:10:42,376 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,377 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:42,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:42,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:42,377 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,379 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:10:42,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:42,382 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:42,384 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:42,384 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:42,384 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:42,384 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:42,385 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:42,385 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:42,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:42,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:42,386 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:42,386 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:42,422 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 13:10:42,423 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792816629]
[2020-09-25 13:10:42,426 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:10:42,426 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 13:10:42,427 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839158300]
[2020-09-25 13:10:42,434 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 13:10:42,434 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:10:42,454 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 13:10:42,455 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:10:42,458 INFO  L87              Difference]: Start difference. First operand 271 states. Second operand 5 states.
[2020-09-25 13:10:43,092 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:10:43,899 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 13:10:45,793 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:10:45,793 INFO  L93              Difference]: Finished difference Result 650 states and 816 transitions.
[2020-09-25 13:10:45,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 13:10:45,796 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 153
[2020-09-25 13:10:45,797 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:10:45,820 INFO  L225             Difference]: With dead ends: 650
[2020-09-25 13:10:45,820 INFO  L226             Difference]: Without dead ends: 482
[2020-09-25 13:10:45,827 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:10:45,850 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 482 states.
[2020-09-25 13:10:45,975 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 387.
[2020-09-25 13:10:45,977 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 387 states.
[2020-09-25 13:10:45,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 433 transitions.
[2020-09-25 13:10:45,982 INFO  L78                 Accepts]: Start accepts. Automaton has 387 states and 433 transitions. Word has length 153
[2020-09-25 13:10:45,982 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:10:45,983 INFO  L479      AbstractCegarLoop]: Abstraction has 387 states and 433 transitions.
[2020-09-25 13:10:45,983 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 13:10:45,983 INFO  L276                IsEmpty]: Start isEmpty. Operand 387 states and 433 transitions.
[2020-09-25 13:10:45,988 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-25 13:10:45,988 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:45,989 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]
[2020-09-25 13:10:45,989 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:10:45,989 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:45,990 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:45,990 INFO  L82        PathProgramCache]: Analyzing trace with hash -123470432, now seen corresponding path program 1 times
[2020-09-25 13:10:45,990 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:45,990 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805490420]
[2020-09-25 13:10:45,991 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:46,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:46,101 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:46,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,122 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,123 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 13:10:49,123 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:10:49,123 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3073
[2020-09-25 13:10:49,123 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,124 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:10:49,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 13:10:49,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 99
[2020-09-25 13:10:49,124 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,481 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:10:49,482 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:10:49,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,549 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,745 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,746 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:10:49,746 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,746 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 229
[2020-09-25 13:10:49,747 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,747 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:49,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 13:10:49,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,806 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:10:49,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,811 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,814 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,814 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:49,815 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,815 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 13:10:49,815 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,815 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:49,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:49,817 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:10:49,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,820 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,822 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,822 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:49,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:10:49,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,823 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:49,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:49,824 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,825 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:10:49,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,828 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,835 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,835 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:49,835 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,835 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:10:49,836 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,836 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:49,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:49,837 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,839 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:10:49,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,841 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,844 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,844 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:49,845 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,845 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:49,845 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,845 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,845 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:49,846 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,846 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:49,846 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,847 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:10:49,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,849 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,852 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,853 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:49,853 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,853 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:49,853 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,854 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:49,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:49,854 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,856 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 13:10:49,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,859 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,861 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,862 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:49,862 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,862 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:49,862 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,863 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:49,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:49,863 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,865 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 13:10:49,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,868 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,874 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,874 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:49,875 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,875 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:10:49,875 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,875 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:10:49,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:49,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:49,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,902 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 13:10:49,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,904 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,906 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,906 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:49,906 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:49,906 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:10:49,912 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,912 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,912 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:49,913 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:49,913 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:49,913 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:49,952 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 13:10:49,952 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805490420]
[2020-09-25 13:10:49,953 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:10:49,953 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 13:10:49,953 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082354204]
[2020-09-25 13:10:49,957 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 13:10:49,957 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:10:49,957 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 13:10:49,958 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 13:10:49,958 INFO  L87              Difference]: Start difference. First operand 387 states and 433 transitions. Second operand 9 states.
[2020-09-25 13:10:50,527 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:10:51,888 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:10:52,253 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:10:52,629 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:10:52,989 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 13:10:53,292 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:10:53,730 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:10:54,049 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:10:54,438 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:10:55,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:10:55,153 INFO  L93              Difference]: Finished difference Result 1013 states and 1277 transitions.
[2020-09-25 13:10:55,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 13:10:55,155 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-25 13:10:55,156 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:10:55,165 INFO  L225             Difference]: With dead ends: 1013
[2020-09-25 13:10:55,165 INFO  L226             Difference]: Without dead ends: 687
[2020-09-25 13:10:55,172 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-25 13:10:55,173 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 687 states.
[2020-09-25 13:10:55,277 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 618.
[2020-09-25 13:10:55,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 618 states.
[2020-09-25 13:10:55,281 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 708 transitions.
[2020-09-25 13:10:55,282 INFO  L78                 Accepts]: Start accepts. Automaton has 618 states and 708 transitions. Word has length 157
[2020-09-25 13:10:55,282 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:10:55,282 INFO  L479      AbstractCegarLoop]: Abstraction has 618 states and 708 transitions.
[2020-09-25 13:10:55,283 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 13:10:55,283 INFO  L276                IsEmpty]: Start isEmpty. Operand 618 states and 708 transitions.
[2020-09-25 13:10:55,287 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 13:10:55,287 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:55,288 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]
[2020-09-25 13:10:55,288 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:10:55,288 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:55,288 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:55,288 INFO  L82        PathProgramCache]: Analyzing trace with hash 194624342, now seen corresponding path program 1 times
[2020-09-25 13:10:55,289 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:55,289 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279985927]
[2020-09-25 13:10:55,289 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:55,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:10:55,360 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:10:55,360 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:10:55,366 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:10:55,393 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:10:55 BoogieIcfgContainer
[2020-09-25 13:10:55,394 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:10:55,396 INFO  L168              Benchmark]: Toolchain (without parser) took 21545.70 ms. Allocated memory was 138.4 MB in the beginning and 518.0 MB in the end (delta: 379.6 MB). Free memory was 101.0 MB in the beginning and 333.4 MB in the end (delta: -232.4 MB). Peak memory consumption was 147.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:10:55,397 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 13:10:55,398 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 698.19 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.3 MB in the beginning and 171.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
[2020-09-25 13:10:55,399 INFO  L168              Benchmark]: Boogie Preprocessor took 97.45 ms. Allocated memory is still 201.3 MB. Free memory was 171.6 MB in the beginning and 168.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB.
[2020-09-25 13:10:55,400 INFO  L168              Benchmark]: RCFGBuilder took 1279.05 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 167.4 MB in the beginning and 183.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB.
[2020-09-25 13:10:55,401 INFO  L168              Benchmark]: TraceAbstraction took 19462.36 ms. Allocated memory was 232.8 MB in the beginning and 518.0 MB in the end (delta: 285.2 MB). Free memory was 181.6 MB in the beginning and 333.4 MB in the end (delta: -151.8 MB). Peak memory consumption was 133.4 MB. Max. memory is 7.1 GB.
[2020-09-25 13:10:55,405 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 698.19 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.3 MB in the beginning and 171.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 97.45 ms. Allocated memory is still 201.3 MB. Free memory was 171.6 MB in the beginning and 168.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1279.05 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 167.4 MB in the beginning and 183.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19462.36 ms. Allocated memory was 232.8 MB in the beginning and 518.0 MB in the end (delta: 285.2 MB). Free memory was 181.6 MB in the beginning and 333.4 MB in the end (delta: -151.8 MB). Peak memory consumption was 133.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 633]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L46]               int waterLevel  =    1;
[L47]               int methaneLevelCritical  =    0;
[L295]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L530]              int cleanupTimeShifts  =    4;
[L677]              int pumpRunning  =    0;
[L678]              int systemActive  =    1;
[L606]              int retValue_acc ;
[L607]              int tmp ;
[L611]  FCALL       select_helpers()
[L612]  FCALL       select_features()
[L613]  CALL, EXPR  valid_product()
[L521]              int retValue_acc ;
[L524]              retValue_acc = 1
[L525]              return (retValue_acc);
[L613]  RET, EXPR   valid_product()
[L613]              tmp = valid_product()
[L615]  COND TRUE   \read(tmp)
[L617]  FCALL       setup()
[L618]  CALL        runTest()
[L600]  CALL        test()
[L808]              int splverifierCounter ;
[L809]              int tmp ;
[L810]              int tmp___0 ;
[L811]              int tmp___1 ;
[L812]              int tmp___2 ;
[L815]              splverifierCounter = 0
[L817]  COND TRUE   1
[L819]  COND TRUE   splverifierCounter < 4
[L825]              tmp = __VERIFIER_nondet_int()
[L827]  COND TRUE   \read(tmp)
[L829]  CALL        waterRise()
[L64]   COND TRUE   waterLevel < 2
[L65]               waterLevel = waterLevel + 1
[L829]  RET         waterRise()
[L835]              tmp___0 = __VERIFIER_nondet_int()
[L837]  COND FALSE  !(\read(tmp___0))
[L845]              tmp___2 = __VERIFIER_nondet_int()
[L847]  COND TRUE   \read(tmp___2)
[L849]  CALL        startSystem()
[L802]              systemActive = 1
[L849]  RET         startSystem()
[L864]  CALL        timeShift()
[L684]  COND FALSE  !(\read(pumpRunning))
[L691]  COND TRUE   \read(systemActive)
[L693]  FCALL       processEnvironment()
[L699]  CALL        __utac_acc__Specification3_spec__1()
[L640]              int tmp ;
[L641]              int tmp___0 ;
[L642]              int tmp___1 ;
[L646]  CALL, EXPR  isMethaneLevelCritical()
[L85]               int retValue_acc ;
[L88]               retValue_acc = methaneLevelCritical
[L89]               return (retValue_acc);
[L646]  RET, EXPR   isMethaneLevelCritical()
[L646]              tmp = isMethaneLevelCritical()
[L648]  COND FALSE  !(\read(tmp))
[L652]  CALL, EXPR  getWaterLevel()
[L117]              int retValue_acc ;
[L120]              retValue_acc = waterLevel
[L121]              return (retValue_acc);
[L652]  RET, EXPR   getWaterLevel()
[L652]              tmp___0 = getWaterLevel()
[L654]  COND TRUE   tmp___0 == 2
[L656]  CALL, EXPR  isPumpRunning()
[L739]              int retValue_acc ;
[L742]              retValue_acc = pumpRunning
[L743]              return (retValue_acc);
[L656]  RET, EXPR   isPumpRunning()
[L656]              tmp___1 = isPumpRunning()
[L658]  COND FALSE  !(\read(tmp___1))
[L662]  CALL        __automaton_fail()
[L633]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 588 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 435 SDtfs, 771 SDslu, 947 SDs, 0 SdLazy, 1549 SolverSat, 253 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=618occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 164 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 138892 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...