/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=0.1 --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_product20.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:49:01,099 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:49:01,104 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:49:01,145 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:49:01,145 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:49:01,153 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:49:01,155 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:49:01,158 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:49:01,161 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:49:01,164 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:49:01,165 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:49:01,166 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:49:01,166 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:49:01,169 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:49:01,172 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:49:01,174 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:49:01,175 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:49:01,176 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:49:01,178 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:49:01,185 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:49:01,188 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:49:01,188 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:49:01,190 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:49:01,190 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:49:01,202 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:49:01,202 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:49:01,203 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:49:01,209 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:49:01,209 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:49:01,213 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:49:01,214 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:49:01,214 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:49:01,215 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:49:01,216 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:49:01,219 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:49:01,219 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:49:01,220 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:49:01,220 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:49:01,221 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:49:01,222 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:49:01,222 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:49:01,223 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 09:49:01,249 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 09:49:01,249 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:49:01,250 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:49:01,251 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 09:49:01,251 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 09:49:01,251 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:49:01,251 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 09:49:01,251 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 09:49:01,252 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 09:49:01,252 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 09:49:01,252 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:49:01,252 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:49:01,252 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:49:01,253 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 09:49:01,253 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 09:49:01,253 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 09:49:01,253 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:49:01,254 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:49:01,254 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 09:49:01,254 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 09:49:01,254 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 09:49:01,254 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:49:01,255 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:49:01,255 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:49:01,255 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:49:01,255 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 09:49:01,255 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:49:01,256 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:49:01,256 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 09:49:01,256 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true;
[2020-09-25 09:49:01,758 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:49:01,776 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:49:01,780 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:49:01,781 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 09:49:01,782 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 09:49:01,783 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c
[2020-09-25 09:49:01,864 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/101728e5d/2e6a1fbd4d8b4257b7c8ebcb88a48a94/FLAG1747607b9
[2020-09-25 09:49:02,523 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 09:49:02,524 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c
[2020-09-25 09:49:02,546 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/101728e5d/2e6a1fbd4d8b4257b7c8ebcb88a48a94/FLAG1747607b9
[2020-09-25 09:49:02,753 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/101728e5d/2e6a1fbd4d8b4257b7c8ebcb88a48a94
[2020-09-25 09:49:02,765 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:49:02,771 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:49:02,772 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:02,772 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:49:02,777 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:49:02,778 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:02" (1/1) ...
[2020-09-25 09:49:02,782 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:02, skipping insertion in model container
[2020-09-25 09:49:02,782 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:02" (1/1) ...
[2020-09-25 09:49:02,791 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 09:49:02,840 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:49:03,298 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:03,323 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 09:49:03,472 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:03,515 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 09:49:03,516 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03 WrapperNode
[2020-09-25 09:49:03,516 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:03,517 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:49:03,517 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:49:03,517 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:49:03,531 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,532 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,551 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,552 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,581 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,592 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,597 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,605 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:49:03,606 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:49:03,606 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:49:03,606 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:49:03,607 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (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 09:49:03,686 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:49:03,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:49:03,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:03,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:49:03,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:49:03,688 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:49:03,688 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:49:03,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:03,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:03,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:03,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:49:03,690 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:49:03,690 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:49:03,690 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:49:03,690 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:49:03,691 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:49:03,691 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:49:03,692 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:49:03,692 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:03,692 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:49:03,692 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:03,693 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:49:03,693 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:49:03,693 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:49:03,693 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:49:03,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:49:03,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:49:03,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 09:49:03,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 09:49:03,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 09:49:03,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:49:03,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:49:03,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:49:03,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:49:03,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:49:03,696 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:49:03,696 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:49:03,696 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 09:49:03,696 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:49:03,696 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:49:03,696 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:49:03,697 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:49:03,697 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:49:03,697 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:49:03,697 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:49:03,697 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:49:03,697 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:49:03,697 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:49:03,698 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:49:03,698 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:03,698 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:49:03,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:49:03,700 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:49:03,700 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:49:03,700 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:03,700 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:49:03,700 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:03,700 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:03,700 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:49:03,701 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:49:03,701 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:49:03,701 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:49:03,701 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:49:03,701 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:49:03,702 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:49:03,702 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:49:03,702 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:49:03,702 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:49:03,702 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:49:03,703 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:49:03,703 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:49:03,705 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:49:03,705 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:49:03,705 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:49:03,705 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:49:03,705 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:49:03,705 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:49:03,706 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:03,706 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:49:03,706 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:49:03,706 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 09:49:03,706 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:49:03,707 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:49:03,707 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 09:49:03,707 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 09:49:03,708 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:49:03,708 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:03,708 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 09:49:03,708 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:49:03,708 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:49:03,708 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:49:03,708 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:49:04,816 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:49:04,817 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:49:04,823 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:04 BoogieIcfgContainer
[2020-09-25 09:49:04,824 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:49:04,827 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:49:04,827 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:49:04,831 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:49:04,834 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:02" (1/3) ...
[2020-09-25 09:49:04,835 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218ab577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:04, skipping insertion in model container
[2020-09-25 09:49:04,835 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (2/3) ...
[2020-09-25 09:49:04,835 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218ab577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:04, skipping insertion in model container
[2020-09-25 09:49:04,835 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:04" (3/3) ...
[2020-09-25 09:49:04,838 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c
[2020-09-25 09:49:04,850 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:49:04,861 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:49:04,883 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:49:04,915 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:49:04,916 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 09:49:04,916 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:49:04,916 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:49:04,916 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:49:04,916 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 09:49:04,916 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:49:04,917 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:49:04,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 302 states.
[2020-09-25 09:49:04,962 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:49:04,962 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:04,964 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 09:49:04,964 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:04,972 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:04,972 INFO  L82        PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times
[2020-09-25 09:49:04,983 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:04,984 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621729908]
[2020-09-25 09:49:04,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:05,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:05,475 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:05,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:07,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:10,347 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:10,348 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:49:10,348 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:10,348 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5029
[2020-09-25 09:49:10,352 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:10,352 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:10,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:49:10,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 09:49:10,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 09:49:10,353 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 09:49:10,846 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:10,849 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:10,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:10,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,187 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,187 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:11,187 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,188 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 295
[2020-09-25 09:49:11,188 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,188 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 09:49:11,191 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 09:49:11,278 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:11,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,283 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,288 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:11,288 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,288 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 09:49:11,289 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,289 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:11,290 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,292 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:11,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,295 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,298 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,299 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:11,299 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,299 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:11,299 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,300 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:11,301 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,303 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:11,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,306 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,315 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,316 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,316 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,316 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:11,316 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,317 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:11,317 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,320 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:11,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,327 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,327 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:11,327 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:11,328 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,328 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:11,329 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,332 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:49:11,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,335 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,339 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,339 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,340 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,340 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:11,340 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,340 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:11,341 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,343 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:49:11,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,346 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,354 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,355 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,355 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,355 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 09:49:11,356 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,356 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:49:11,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:11,357 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,392 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:49:11,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,399 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,399 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,399 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,399 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:11,400 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,401 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:11,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:11,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:11,402 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,440 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 09:49:11,441 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621729908]
[2020-09-25 09:49:11,443 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:11,443 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:49:11,444 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599231636]
[2020-09-25 09:49:11,454 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:49:11,454 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:11,471 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:49:11,473 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:49:11,476 INFO  L87              Difference]: Start difference. First operand 302 states. Second operand 8 states.
[2020-09-25 09:49:12,065 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:13,987 WARN  L193               SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188
[2020-09-25 09:49:14,679 WARN  L193               SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190
[2020-09-25 09:49:14,999 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 09:49:15,390 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:15,757 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:16,075 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:16,435 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:17,483 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:17,483 INFO  L93              Difference]: Finished difference Result 608 states and 745 transitions.
[2020-09-25 09:49:17,484 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 09:49:17,486 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:49:17,487 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:17,507 INFO  L225             Difference]: With dead ends: 608
[2020-09-25 09:49:17,508 INFO  L226             Difference]: Without dead ends: 423
[2020-09-25 09:49:17,514 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-25 09:49:17,543 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 423 states.
[2020-09-25 09:49:17,675 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 376.
[2020-09-25 09:49:17,677 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 376 states.
[2020-09-25 09:49:17,680 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 422 transitions.
[2020-09-25 09:49:17,682 INFO  L78                 Accepts]: Start accepts. Automaton has 376 states and 422 transitions. Word has length 153
[2020-09-25 09:49:17,683 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:17,683 INFO  L479      AbstractCegarLoop]: Abstraction has 376 states and 422 transitions.
[2020-09-25 09:49:17,683 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:17,683 INFO  L276                IsEmpty]: Start isEmpty. Operand 376 states and 422 transitions.
[2020-09-25 09:49:17,690 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 09:49:17,690 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:17,691 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 09:49:17,691 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:17,691 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:17,692 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:17,692 INFO  L82        PathProgramCache]: Analyzing trace with hash 1423585800, now seen corresponding path program 1 times
[2020-09-25 09:49:17,692 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:17,692 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919504524]
[2020-09-25 09:49:17,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:17,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:17,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,107 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,107 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 09:49:18,107 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,108 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 356
[2020-09-25 09:49:18,108 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,108 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:18,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 09:49:18,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 09:49:18,109 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 09:49:18,384 WARN  L193               SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:18,385 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:18,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,405 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,503 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,503 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:18,503 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,503 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 105
[2020-09-25 09:49:18,504 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,504 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:18,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,504 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 09:49:18,537 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:18,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,542 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,543 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:18,543 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,543 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:18,543 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,544 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,544 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,544 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:18,544 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,544 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,545 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:18,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,547 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,560 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,560 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:18,561 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,561 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 09:49:18,561 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,561 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:18,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,562 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,564 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:18,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,566 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,571 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:18,572 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,572 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:18,572 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,573 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:18,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,574 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:18,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,579 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,579 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:18,579 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,580 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:18,580 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,580 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:18,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,582 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,595 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 09:49:18,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,597 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,601 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,601 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:18,602 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,602 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:18,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,603 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:18,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,604 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,617 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 09:49:18,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,622 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,627 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,627 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 09:49:18,628 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,628 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:18,628 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,629 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:18,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:18,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 09:49:18,630 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,632 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 09:49:18,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,634 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,636 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,636 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:18,640 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,641 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:18,641 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,641 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:18,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,643 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,644 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 09:49:18,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,647 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,649 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:18,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,650 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:18,650 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,650 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:18,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,651 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,653 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 09:49:18,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,656 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,657 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:18,658 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:18,658 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:18,658 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:18,658 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:18,659 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:18,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:18,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:18,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:18,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:18,709 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 09:49:18,710 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919504524]
[2020-09-25 09:49:18,710 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:18,711 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 09:49:18,711 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77353086]
[2020-09-25 09:49:18,714 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 09:49:18,715 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:18,715 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 09:49:18,715 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 09:49:18,715 INFO  L87              Difference]: Start difference. First operand 376 states and 422 transitions. Second operand 6 states.
[2020-09-25 09:49:19,261 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:21,604 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:21,604 INFO  L93              Difference]: Finished difference Result 1032 states and 1265 transitions.
[2020-09-25 09:49:21,604 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 09:49:21,604 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 09:49:21,605 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:21,616 INFO  L225             Difference]: With dead ends: 1032
[2020-09-25 09:49:21,616 INFO  L226             Difference]: Without dead ends: 766
[2020-09-25 09:49:21,620 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 09:49:21,626 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 766 states.
[2020-09-25 09:49:21,735 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 621.
[2020-09-25 09:49:21,735 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 621 states.
[2020-09-25 09:49:21,739 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 711 transitions.
[2020-09-25 09:49:21,740 INFO  L78                 Accepts]: Start accepts. Automaton has 621 states and 711 transitions. Word has length 172
[2020-09-25 09:49:21,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:21,741 INFO  L479      AbstractCegarLoop]: Abstraction has 621 states and 711 transitions.
[2020-09-25 09:49:21,741 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 09:49:21,741 INFO  L276                IsEmpty]: Start isEmpty. Operand 621 states and 711 transitions.
[2020-09-25 09:49:21,746 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 09:49:21,746 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:21,746 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:21,747 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:21,747 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:21,747 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:21,747 INFO  L82        PathProgramCache]: Analyzing trace with hash 1393167539, now seen corresponding path program 1 times
[2020-09-25 09:49:21,748 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:21,748 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027011053]
[2020-09-25 09:49:21,748 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:21,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:21,816 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:21,817 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:21,822 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:21,847 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:21 BoogieIcfgContainer
[2020-09-25 09:49:21,847 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:21,849 INFO  L168              Benchmark]: Toolchain (without parser) took 19082.47 ms. Allocated memory was 143.7 MB in the beginning and 460.3 MB in the end (delta: 316.7 MB). Free memory was 106.2 MB in the beginning and 113.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 309.2 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:21,850 INFO  L168              Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 143.7 MB. Free memory was 125.1 MB in the beginning and 124.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:49:21,851 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 744.25 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 105.5 MB in the beginning and 170.2 MB in the end (delta: -64.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:21,852 INFO  L168              Benchmark]: Boogie Preprocessor took 88.58 ms. Allocated memory is still 205.0 MB. Free memory was 170.2 MB in the beginning and 165.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:21,853 INFO  L168              Benchmark]: RCFGBuilder took 1218.09 ms. Allocated memory was 205.0 MB in the beginning and 231.7 MB in the end (delta: 26.7 MB). Free memory was 165.8 MB in the beginning and 162.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:21,854 INFO  L168              Benchmark]: TraceAbstraction took 17019.91 ms. Allocated memory was 231.7 MB in the beginning and 460.3 MB in the end (delta: 228.6 MB). Free memory was 161.1 MB in the beginning and 113.7 MB in the end (delta: 47.4 MB). Peak memory consumption was 276.0 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:21,857 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.16 ms. Allocated memory is still 143.7 MB. Free memory was 125.1 MB in the beginning and 124.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 744.25 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 105.5 MB in the beginning and 170.2 MB in the end (delta: -64.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 88.58 ms. Allocated memory is still 205.0 MB. Free memory was 170.2 MB in the beginning and 165.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1218.09 ms. Allocated memory was 205.0 MB in the beginning and 231.7 MB in the end (delta: 26.7 MB). Free memory was 165.8 MB in the beginning and 162.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17019.91 ms. Allocated memory was 231.7 MB in the beginning and 460.3 MB in the end (delta: 228.6 MB). Free memory was 161.1 MB in the beginning and 113.7 MB in the end (delta: 47.4 MB). Peak memory consumption was 276.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L247]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L444]              int cleanupTimeShifts  =    4;
[L590]              int pumpRunning  =    0;
[L591]              int systemActive  =    1;
[L834]              int waterLevel  =    1;
[L835]              int methaneLevelCritical  =    0;
[L522]              int retValue_acc ;
[L523]              int tmp ;
[L527]  FCALL       select_helpers()
[L528]  FCALL       select_features()
[L529]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L529]  RET, EXPR   valid_product()
[L529]              tmp = valid_product()
[L531]  COND TRUE   \read(tmp)
[L533]  FCALL       setup()
[L534]  CALL        runTest()
[L516]  CALL        test()
[L766]              int splverifierCounter ;
[L767]              int tmp ;
[L768]              int tmp___0 ;
[L769]              int tmp___1 ;
[L770]              int tmp___2 ;
[L773]              splverifierCounter = 0
[L775]  COND TRUE   1
[L777]  COND TRUE   splverifierCounter < 4
[L783]              tmp = __VERIFIER_nondet_int()
[L785]  COND TRUE   \read(tmp)
[L787]  CALL        waterRise()
[L852]  COND TRUE   waterLevel < 2
[L853]              waterLevel = waterLevel + 1
[L787]  RET         waterRise()
[L793]              tmp___0 = __VERIFIER_nondet_int()
[L795]  COND FALSE  !(\read(tmp___0))
[L803]              tmp___2 = __VERIFIER_nondet_int()
[L805]  COND TRUE   \read(tmp___2)
[L807]  CALL        startSystem()
[L760]              systemActive = 1
[L807]  RET         startSystem()
[L822]  CALL        timeShift()
[L597]  COND FALSE  !(\read(pumpRunning))
[L604]  COND TRUE   \read(systemActive)
[L606]  CALL        processEnvironment()
[L626]              int tmp ;
[L629]  COND FALSE  !(\read(pumpRunning))
[L644]  FCALL       processEnvironment__wrappee__base()
[L606]  RET         processEnvironment()
[L612]  CALL        __utac_acc__Specification3_spec__1()
[L550]              int tmp ;
[L551]              int tmp___0 ;
[L552]              int tmp___1 ;
[L556]  CALL, EXPR  isMethaneLevelCritical()
[L873]              int retValue_acc ;
[L876]              retValue_acc = methaneLevelCritical
[L877]              return (retValue_acc);
[L556]  RET, EXPR   isMethaneLevelCritical()
[L556]              tmp = isMethaneLevelCritical()
[L558]  COND FALSE  !(\read(tmp))
[L562]  CALL, EXPR  getWaterLevel()
[L905]              int retValue_acc ;
[L908]              retValue_acc = waterLevel
[L909]              return (retValue_acc);
[L562]  RET, EXPR   getWaterLevel()
[L562]              tmp___0 = getWaterLevel()
[L564]  COND TRUE   tmp___0 == 2
[L566]  CALL, EXPR  isPumpRunning()
[L678]              int retValue_acc ;
[L681]              retValue_acc = pumpRunning
[L682]              return (retValue_acc);
[L566]  RET, EXPR   isPumpRunning()
[L566]              tmp___1 = isPumpRunning()
[L568]  COND FALSE  !(\read(tmp___1))
[L572]  CALL        __automaton_fail()
[L927]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 485 SDtfs, 1019 SDslu, 830 SDs, 0 SdLazy, 1772 SolverSat, 350 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=621occurred 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, 192 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 130112 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...