/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=WIDEST --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_product12.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:58:32,138 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:58:32,142 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:58:32,189 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:58:32,190 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:58:32,191 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:58:32,193 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:58:32,195 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:58:32,196 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:58:32,197 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:58:32,199 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:58:32,200 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:58:32,200 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:58:32,201 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:58:32,202 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:58:32,204 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:58:32,205 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:58:32,206 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:58:32,208 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:58:32,210 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:58:32,212 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:58:32,213 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:58:32,215 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:58:32,216 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:58:32,218 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:58:32,219 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:58:32,219 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:58:32,220 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:58:32,220 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:58:32,222 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:58:32,222 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:58:32,223 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:58:32,224 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:58:32,225 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:58:32,226 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:58:32,226 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:58:32,227 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:58:32,227 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:58:32,227 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:58:32,228 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:58:32,229 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:58:32,230 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 02:58:32,258 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 02:58:32,258 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:58:32,260 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:58:32,260 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 02:58:32,260 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 02:58:32,261 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:58:32,261 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 02:58:32,261 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 02:58:32,261 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 02:58:32,261 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 02:58:32,262 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:58:32,262 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:58:32,262 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:58:32,262 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 02:58:32,263 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 02:58:32,263 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 02:58:32,263 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:58:32,263 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:58:32,264 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 02:58:32,264 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 02:58:32,264 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 02:58:32,264 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:32,265 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:58:32,265 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:58:32,265 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:58:32,265 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 02:58:32,265 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:58:32,266 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:58:32,266 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 02:58:32,266 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 02:58:32,725 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:58:32,749 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:58:32,753 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:58:32,756 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 02:58:32,757 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 02:58:32,758 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c
[2020-09-25 02:58:32,849 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6832914bb/2f2ee19344764b14aff4657083195ce7/FLAGd3e5ec697
[2020-09-25 02:58:33,443 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 02:58:33,444 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c
[2020-09-25 02:58:33,460 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6832914bb/2f2ee19344764b14aff4657083195ce7/FLAGd3e5ec697
[2020-09-25 02:58:33,739 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6832914bb/2f2ee19344764b14aff4657083195ce7
[2020-09-25 02:58:33,754 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:58:33,760 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:58:33,763 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:33,764 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:58:33,768 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:58:33,769 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:33" (1/1) ...
[2020-09-25 02:58:33,774 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6cecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:33, skipping insertion in model container
[2020-09-25 02:58:33,774 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:33" (1/1) ...
[2020-09-25 02:58:33,785 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 02:58:33,856 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:58:34,200 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:34,217 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 02:58:34,410 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:34,457 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 02:58:34,458 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34 WrapperNode
[2020-09-25 02:58:34,458 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:34,459 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:58:34,459 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:58:34,460 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:58:34,479 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (1/1) ...
[2020-09-25 02:58:34,480 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (1/1) ...
[2020-09-25 02:58:34,518 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (1/1) ...
[2020-09-25 02:58:34,518 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (1/1) ...
[2020-09-25 02:58:34,573 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (1/1) ...
[2020-09-25 02:58:34,584 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (1/1) ...
[2020-09-25 02:58:34,592 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (1/1) ...
[2020-09-25 02:58:34,599 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:58:34,599 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:58:34,600 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:58:34,600 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:58:34,601 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (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 02:58:34,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:58:34,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:58:34,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:34,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:34,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 02:58:34,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 02:58:34,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 02:58:34,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 02:58:34,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 02:58:34,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 02:58:34,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 02:58:34,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 02:58:34,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 02:58:34,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 02:58:34,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 02:58:34,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 02:58:34,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 02:58:34,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 02:58:34,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 02:58:34,671 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 02:58:34,674 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 02:58:34,674 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 02:58:34,675 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 02:58:34,675 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 02:58:34,676 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 02:58:34,677 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:34,677 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:34,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:34,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 02:58:34,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 02:58:34,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 02:58:34,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 02:58:34,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 02:58:34,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 02:58:34,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 02:58:34,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:58:34,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 02:58:34,679 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:58:34,679 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 02:58:34,680 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 02:58:34,680 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 02:58:34,680 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 02:58:34,680 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 02:58:34,680 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 02:58:34,680 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:34,680 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 02:58:34,681 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 02:58:34,681 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 02:58:34,681 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 02:58:34,681 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 02:58:34,681 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 02:58:34,682 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 02:58:34,682 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 02:58:34,682 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 02:58:34,682 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 02:58:34,683 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 02:58:34,683 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 02:58:34,683 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 02:58:34,683 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 02:58:34,683 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 02:58:34,683 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 02:58:34,683 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 02:58:34,684 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 02:58:34,684 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 02:58:34,684 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 02:58:34,684 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 02:58:34,684 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 02:58:34,684 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 02:58:34,684 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:34,685 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 02:58:34,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 02:58:34,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 02:58:34,687 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 02:58:34,687 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:34,687 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 02:58:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 02:58:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 02:58:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 02:58:34,689 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 02:58:34,689 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 02:58:34,690 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 02:58:34,690 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 02:58:34,690 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:58:34,690 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:58:34,690 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 02:58:34,690 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:58:35,852 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:58:35,852 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 02:58:35,860 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:35 BoogieIcfgContainer
[2020-09-25 02:58:35,860 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:58:35,861 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:58:35,862 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:58:35,865 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:58:35,866 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:33" (1/3) ...
[2020-09-25 02:58:35,867 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1751f5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:35, skipping insertion in model container
[2020-09-25 02:58:35,867 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:34" (2/3) ...
[2020-09-25 02:58:35,867 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1751f5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:35, skipping insertion in model container
[2020-09-25 02:58:35,867 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:35" (3/3) ...
[2020-09-25 02:58:35,870 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c
[2020-09-25 02:58:35,882 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:58:35,893 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:58:35,915 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:58:35,945 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:58:35,945 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 02:58:35,945 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:58:35,946 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:58:35,946 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:58:35,946 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 02:58:35,946 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:58:35,946 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:58:35,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 281 states.
[2020-09-25 02:58:35,991 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 02:58:35,991 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:35,993 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 02:58:35,993 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:36,001 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:36,001 INFO  L82        PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times
[2020-09-25 02:58:36,011 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:36,011 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188952333]
[2020-09-25 02:58:36,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:36,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:36,580 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:36,752 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:38,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:41,412 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:41,415 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 02:58:41,424 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:58:41,424 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5021
[2020-09-25 02:58:41,430 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:41,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:58:41,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 02:58:41,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-25 02:58:41,433 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 02:58:41,997 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:42,000 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:42,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,083 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,275 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,275 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:42,275 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,275 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 232
[2020-09-25 02:58:42,276 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:42,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:42,277 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 02:58:42,277 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:42,353 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:42,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,357 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,360 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,361 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:42,361 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:42,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:42,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:42,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:42,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:42,365 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:42,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,372 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,372 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:42,372 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,373 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:42,373 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:42,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:42,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:42,374 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:42,376 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:42,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,389 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,390 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:42,390 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,390 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 02:58:42,390 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:42,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:42,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:42,391 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:42,394 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:42,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,397 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,402 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:42,402 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,403 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:42,403 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:42,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:42,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:42,404 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:42,406 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 02:58:42,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,409 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,413 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,413 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:42,414 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,414 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:42,414 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,414 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:42,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:42,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:42,415 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:42,417 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 02:58:42,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,421 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,430 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,431 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:42,431 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,431 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:58:42,431 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:58:42,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:42,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:42,432 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:42,466 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 02:58:42,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:42,469 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,471 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:42,471 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:42,471 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:42,472 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:42,472 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:42,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:42,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:42,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:42,473 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:42,514 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 02:58:42,515 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188952333]
[2020-09-25 02:58:42,517 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:42,518 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 02:58:42,519 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096163280]
[2020-09-25 02:58:42,526 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:58:42,527 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:42,546 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:58:42,547 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:58:42,550 INFO  L87              Difference]: Start difference. First operand 281 states. Second operand 8 states.
[2020-09-25 02:58:43,206 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:44,527 WARN  L193               SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:44,904 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:45,307 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:45,703 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:45,984 WARN  L193               SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:46,481 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:46,828 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:47,801 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:47,802 INFO  L93              Difference]: Finished difference Result 510 states and 633 transitions.
[2020-09-25 02:58:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 02:58:47,805 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 02:58:47,806 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:47,826 INFO  L225             Difference]: With dead ends: 510
[2020-09-25 02:58:47,826 INFO  L226             Difference]: Without dead ends: 339
[2020-09-25 02:58:47,833 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 02:58:47,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 339 states.
[2020-09-25 02:58:47,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 301.
[2020-09-25 02:58:47,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 301 states.
[2020-09-25 02:58:47,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 332 transitions.
[2020-09-25 02:58:47,961 INFO  L78                 Accepts]: Start accepts. Automaton has 301 states and 332 transitions. Word has length 153
[2020-09-25 02:58:47,962 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:47,962 INFO  L479      AbstractCegarLoop]: Abstraction has 301 states and 332 transitions.
[2020-09-25 02:58:47,962 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:58:47,962 INFO  L276                IsEmpty]: Start isEmpty. Operand 301 states and 332 transitions.
[2020-09-25 02:58:47,969 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 02:58:47,969 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:47,969 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]
[2020-09-25 02:58:47,970 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:58:47,970 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:47,970 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:47,971 INFO  L82        PathProgramCache]: Analyzing trace with hash 55917288, now seen corresponding path program 1 times
[2020-09-25 02:58:47,971 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:47,971 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396518152]
[2020-09-25 02:58:47,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:48,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:48,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:48,491 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:48,491 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 02:58:48,492 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:48,492 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 458
[2020-09-25 02:58:48,492 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:48,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:48,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 02:58:48,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 02:58:48,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 02:58:48,816 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:48,817 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:48,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:48,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:48,952 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:48,952 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:48,952 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:48,953 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 124
[2020-09-25 02:58:48,953 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:48,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:48,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:48,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:48,954 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:48,987 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:48,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:48,990 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,000 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,000 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:49,000 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,000 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 02:58:49,001 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:49,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,002 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:49,006 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:49,007 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,012 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,014 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,015 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:49,015 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,015 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 02:58:49,015 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:49,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,016 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:49,018 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:49,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,028 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,028 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:49,029 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,029 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 02:58:49,029 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:49,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,030 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:49,032 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:49,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,035 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,035 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:49,035 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,036 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:49,036 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:49,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,037 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:49,044 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 02:58:49,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,047 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 02:58:49,050 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,050 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:49,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:49,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,051 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:49,061 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 02:58:49,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,063 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,067 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,067 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 02:58:49,067 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,067 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:49,069 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:49,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:49,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 02:58:49,070 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:49,074 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 02:58:49,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,076 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,078 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,078 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:49,079 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,079 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:49,079 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:49,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,085 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 02:58:49,086 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 02:58:49,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,090 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,090 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:49,091 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,091 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:49,091 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,091 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,091 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:49,092 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,092 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:49,093 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 02:58:49,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:49,103 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:49,105 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:49,105 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:49,106 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:49,106 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:49,106 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:49,107 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:49,107 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:49,107 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:49,108 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:49,174 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 02:58:49,175 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396518152]
[2020-09-25 02:58:49,176 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:49,176 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 02:58:49,176 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990246010]
[2020-09-25 02:58:49,180 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 02:58:49,181 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:49,181 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 02:58:49,181 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 02:58:49,181 INFO  L87              Difference]: Start difference. First operand 301 states and 332 transitions. Second operand 6 states.
[2020-09-25 02:58:49,774 WARN  L193               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:51,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:51,766 INFO  L93              Difference]: Finished difference Result 840 states and 1031 transitions.
[2020-09-25 02:58:51,766 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 02:58:51,766 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 02:58:51,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:51,775 INFO  L225             Difference]: With dead ends: 840
[2020-09-25 02:58:51,775 INFO  L226             Difference]: Without dead ends: 649
[2020-09-25 02:58:51,783 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 02:58:51,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 649 states.
[2020-09-25 02:58:51,913 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 463.
[2020-09-25 02:58:51,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 463 states.
[2020-09-25 02:58:51,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 521 transitions.
[2020-09-25 02:58:51,916 INFO  L78                 Accepts]: Start accepts. Automaton has 463 states and 521 transitions. Word has length 172
[2020-09-25 02:58:51,917 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:51,917 INFO  L479      AbstractCegarLoop]: Abstraction has 463 states and 521 transitions.
[2020-09-25 02:58:51,917 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 02:58:51,918 INFO  L276                IsEmpty]: Start isEmpty. Operand 463 states and 521 transitions.
[2020-09-25 02:58:51,922 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 02:58:51,922 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:51,922 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 02:58:51,923 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:58:51,923 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:51,923 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:51,923 INFO  L82        PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times
[2020-09-25 02:58:51,924 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:51,924 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816503797]
[2020-09-25 02:58:51,924 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:51,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:58:51,992 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:58:51,992 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:58:51,998 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:58:52,030 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:58:52 BoogieIcfgContainer
[2020-09-25 02:58:52,030 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:58:52,034 INFO  L168              Benchmark]: Toolchain (without parser) took 18276.21 ms. Allocated memory was 140.5 MB in the beginning and 535.8 MB in the end (delta: 395.3 MB). Free memory was 103.1 MB in the beginning and 468.7 MB in the end (delta: -365.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:52,035 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 02:58:52,036 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 695.54 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 175.3 MB in the end (delta: -72.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:52,037 INFO  L168              Benchmark]: Boogie Preprocessor took 139.83 ms. Allocated memory is still 204.5 MB. Free memory was 175.3 MB in the beginning and 171.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:52,039 INFO  L168              Benchmark]: RCFGBuilder took 1260.77 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 171.1 MB in the beginning and 183.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:52,046 INFO  L168              Benchmark]: TraceAbstraction took 16168.69 ms. Allocated memory was 238.6 MB in the beginning and 535.8 MB in the end (delta: 297.3 MB). Free memory was 183.0 MB in the beginning and 468.7 MB in the end (delta: -285.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:52,054 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 695.54 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 175.3 MB in the end (delta: -72.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 139.83 ms. Allocated memory is still 204.5 MB. Free memory was 175.3 MB in the beginning and 171.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1260.77 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 171.1 MB in the beginning and 183.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 16168.69 ms. Allocated memory was 238.6 MB in the beginning and 535.8 MB in the end (delta: 297.3 MB). Free memory was 183.0 MB in the beginning and 468.7 MB in the end (delta: -285.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L158]              int pumpRunning  =    0;
[L159]              int systemActive  =    1;
[L306]              int waterLevel  =    1;
[L307]              int methaneLevelCritical  =    0;
[L593]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L790]              int cleanupTimeShifts  =    4;
[L863]              int retValue_acc ;
[L864]              int tmp ;
[L868]  FCALL       select_helpers()
[L869]  FCALL       select_features()
[L870]  CALL, EXPR  valid_product()
[L415]              int retValue_acc ;
[L418]              retValue_acc = 1
[L419]              return (retValue_acc);
[L870]  RET, EXPR   valid_product()
[L870]              tmp = valid_product()
[L872]  COND TRUE   \read(tmp)
[L874]  FCALL       setup()
[L875]  CALL        runTest()
[L857]  CALL        test()
[L85]               int splverifierCounter ;
[L86]               int tmp ;
[L87]               int tmp___0 ;
[L88]               int tmp___1 ;
[L89]               int tmp___2 ;
[L92]               splverifierCounter = 0
[L94]   COND TRUE   1
[L96]   COND TRUE   splverifierCounter < 4
[L102]              tmp = __VERIFIER_nondet_int()
[L104]  COND TRUE   \read(tmp)
[L106]  CALL        waterRise()
[L324]  COND TRUE   waterLevel < 2
[L325]              waterLevel = waterLevel + 1
[L106]  RET         waterRise()
[L112]              tmp___0 = __VERIFIER_nondet_int()
[L114]  COND FALSE  !(\read(tmp___0))
[L122]              tmp___2 = __VERIFIER_nondet_int()
[L124]  COND TRUE   \read(tmp___2)
[L126]  CALL        startSystem()
[L301]              systemActive = 1
[L126]  RET         startSystem()
[L141]  CALL        timeShift()
[L165]  COND FALSE  !(\read(pumpRunning))
[L172]  COND TRUE   \read(systemActive)
[L174]  FCALL       processEnvironment()
[L180]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L345]              int retValue_acc ;
[L348]              retValue_acc = methaneLevelCritical
[L349]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L377]              int retValue_acc ;
[L380]              retValue_acc = waterLevel
[L381]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L238]              int retValue_acc ;
[L241]              retValue_acc = pumpRunning
[L242]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L890]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 431 SDtfs, 894 SDslu, 740 SDs, 0 SdLazy, 1475 SolverSat, 295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred 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, 224 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128440 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...