/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=SHALLOWEST --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_product32.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 23:35:44,726 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 23:35:44,731 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 23:35:44,776 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 23:35:44,777 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 23:35:44,785 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 23:35:44,787 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 23:35:44,791 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 23:35:44,794 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 23:35:44,798 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 23:35:44,799 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 23:35:44,800 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 23:35:44,800 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 23:35:44,804 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 23:35:44,807 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 23:35:44,808 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 23:35:44,810 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 23:35:44,812 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 23:35:44,813 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 23:35:44,822 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 23:35:44,824 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 23:35:44,825 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 23:35:44,826 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 23:35:44,827 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 23:35:44,839 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 23:35:44,839 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 23:35:44,840 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 23:35:44,848 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 23:35:44,848 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 23:35:44,849 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 23:35:44,850 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 23:35:44,851 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 23:35:44,854 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 23:35:44,854 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 23:35:44,855 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 23:35:44,858 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 23:35:44,859 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 23:35:44,859 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 23:35:44,859 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 23:35:44,860 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 23:35:44,861 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 23:35:44,863 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 23:35:44,908 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 23:35:44,909 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 23:35:44,911 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 23:35:44,911 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 23:35:44,911 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 23:35:44,912 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 23:35:44,912 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 23:35:44,912 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 23:35:44,912 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 23:35:44,913 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 23:35:44,914 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 23:35:44,914 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 23:35:44,914 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 23:35:44,915 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 23:35:44,915 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 23:35:44,915 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 23:35:44,915 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 23:35:44,916 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 23:35:44,916 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 23:35:44,916 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 23:35:44,917 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 23:35:44,917 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:35:44,917 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 23:35:44,917 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 23:35:44,917 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 23:35:44,918 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 23:35:44,918 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 23:35:44,918 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 23:35:44,918 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 23:35:44,918 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true;
[2020-09-24 23:35:45,367 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 23:35:45,383 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 23:35:45,387 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 23:35:45,388 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 23:35:45,389 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 23:35:45,390 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c
[2020-09-24 23:35:45,466 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/603cf89dc/570dd99a09164c1f9b00daaebbf84d23/FLAG28376f3ec
[2020-09-24 23:35:46,117 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 23:35:46,118 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c
[2020-09-24 23:35:46,158 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/603cf89dc/570dd99a09164c1f9b00daaebbf84d23/FLAG28376f3ec
[2020-09-24 23:35:46,371 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/603cf89dc/570dd99a09164c1f9b00daaebbf84d23
[2020-09-24 23:35:46,385 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 23:35:46,391 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 23:35:46,395 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:46,395 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 23:35:46,400 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 23:35:46,401 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:46" (1/1) ...
[2020-09-24 23:35:46,407 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:46, skipping insertion in model container
[2020-09-24 23:35:46,407 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:46" (1/1) ...
[2020-09-24 23:35:46,418 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 23:35:46,494 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 23:35:46,854 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:46,869 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 23:35:47,056 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:47,097 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 23:35:47,097 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47 WrapperNode
[2020-09-24 23:35:47,097 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:47,098 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 23:35:47,098 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 23:35:47,099 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 23:35:47,113 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
[2020-09-24 23:35:47,113 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
[2020-09-24 23:35:47,135 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
[2020-09-24 23:35:47,135 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
[2020-09-24 23:35:47,170 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
[2020-09-24 23:35:47,182 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
[2020-09-24 23:35:47,193 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
[2020-09-24 23:35:47,201 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 23:35:47,202 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 23:35:47,202 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 23:35:47,202 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 23:35:47,204 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:35:47,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 23:35:47,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 23:35:47,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:47,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:47,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:47,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:47,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 23:35:47,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 23:35:47,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 23:35:47,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 23:35:47,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 23:35:47,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 23:35:47,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 23:35:47,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 23:35:47,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 23:35:47,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 23:35:47,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 23:35:47,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 23:35:47,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 23:35:47,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 23:35:47,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 23:35:47,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 23:35:47,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 23:35:47,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 23:35:47,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 23:35:47,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 23:35:47,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 23:35:47,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 23:35:47,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 23:35:47,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:47,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 23:35:47,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 23:35:47,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 23:35:47,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 23:35:47,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 23:35:47,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 23:35:47,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 23:35:47,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 23:35:47,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 23:35:47,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 23:35:47,302 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 23:35:47,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 23:35:47,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 23:35:47,302 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 23:35:47,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 23:35:47,302 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 23:35:47,303 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 23:35:47,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:47,303 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 23:35:47,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 23:35:47,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 23:35:47,303 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 23:35:47,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:47,304 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 23:35:47,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:47,304 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:47,304 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 23:35:47,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 23:35:47,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 23:35:47,305 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 23:35:47,305 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 23:35:47,305 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 23:35:47,305 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 23:35:47,305 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 23:35:47,305 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 23:35:47,306 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 23:35:47,306 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 23:35:47,306 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 23:35:47,306 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 23:35:47,306 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 23:35:47,306 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 23:35:47,307 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 23:35:47,307 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 23:35:47,307 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 23:35:47,307 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 23:35:47,307 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 23:35:47,307 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:47,308 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 23:35:47,308 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 23:35:47,308 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 23:35:47,308 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 23:35:47,308 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 23:35:47,308 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 23:35:47,309 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 23:35:47,309 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 23:35:47,309 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 23:35:47,309 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 23:35:47,309 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 23:35:47,309 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 23:35:47,309 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 23:35:47,310 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 23:35:47,310 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 23:35:47,310 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 23:35:47,310 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 23:35:47,310 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 23:35:47,310 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 23:35:48,518 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 23:35:48,519 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 23:35:48,528 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:48 BoogieIcfgContainer
[2020-09-24 23:35:48,528 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 23:35:48,530 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 23:35:48,530 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 23:35:48,534 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 23:35:48,534 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:35:46" (1/3) ...
[2020-09-24 23:35:48,535 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615c2b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:48, skipping insertion in model container
[2020-09-24 23:35:48,535 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:47" (2/3) ...
[2020-09-24 23:35:48,536 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615c2b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:48, skipping insertion in model container
[2020-09-24 23:35:48,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:48" (3/3) ...
[2020-09-24 23:35:48,538 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c
[2020-09-24 23:35:48,551 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 23:35:48,563 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 23:35:48,595 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 23:35:48,650 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 23:35:48,650 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 23:35:48,650 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 23:35:48,650 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 23:35:48,650 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 23:35:48,651 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 23:35:48,664 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 23:35:48,664 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 23:35:48,719 INFO  L276                IsEmpty]: Start isEmpty. Operand 326 states.
[2020-09-24 23:35:48,738 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 23:35:48,738 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:35:48,740 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]
[2020-09-24 23:35:48,740 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:48,748 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:48,749 INFO  L82        PathProgramCache]: Analyzing trace with hash 1415492803, now seen corresponding path program 1 times
[2020-09-24 23:35:48,760 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:48,760 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16886174]
[2020-09-24 23:35:48,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:49,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:49,266 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:49,504 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:51,103 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:54,158 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:54,158 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 23:35:54,159 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 23:35:54,160 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5038
[2020-09-24 23:35:54,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:54,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 23:35:54,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 23:35:54,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-24 23:35:54,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 23:35:54,647 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:35:54,654 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:35:54,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:54,737 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:54,978 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:54,979 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:35:54,979 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:54,979 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 282
[2020-09-24 23:35:54,980 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:54,980 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:54,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:54,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 23:35:54,981 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,083 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:35:55,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,087 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,091 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,092 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:55,092 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,092 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:55,093 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:55,094 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,097 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:35:55,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,099 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,103 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,103 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:55,103 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,104 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:55,104 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:55,105 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,107 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:35:55,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,111 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,122 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,122 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,122 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,123 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 23:35:55,123 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:55,125 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,128 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:35:55,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,135 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:55,136 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:55,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:55,138 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,140 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 23:35:55,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,142 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,144 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,144 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,145 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,145 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:55,145 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:55,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:55,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:55,146 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,148 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 23:35:55,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,150 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,153 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,153 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,153 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,154 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:55,154 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:55,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:55,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:55,155 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,158 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 23:35:55,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,160 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,164 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,164 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:55,165 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:55,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:55,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:55,166 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 23:35:55,290 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16886174]
[2020-09-24 23:35:55,293 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:35:55,293 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 23:35:55,294 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254313016]
[2020-09-24 23:35:55,306 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 23:35:55,308 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:35:55,333 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 23:35:55,335 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 23:35:55,338 INFO  L87              Difference]: Start difference. First operand 326 states. Second operand 4 states.
[2020-09-24 23:35:56,018 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:35:58,441 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:35:58,442 INFO  L93              Difference]: Finished difference Result 687 states and 837 transitions.
[2020-09-24 23:35:58,443 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 23:35:58,445 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 23:35:58,446 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:35:58,467 INFO  L225             Difference]: With dead ends: 687
[2020-09-24 23:35:58,468 INFO  L226             Difference]: Without dead ends: 482
[2020-09-24 23:35:58,474 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 23:35:58,499 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 482 states.
[2020-09-24 23:35:58,639 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 410.
[2020-09-24 23:35:58,640 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 410 states.
[2020-09-24 23:35:58,644 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 461 transitions.
[2020-09-24 23:35:58,646 INFO  L78                 Accepts]: Start accepts. Automaton has 410 states and 461 transitions. Word has length 153
[2020-09-24 23:35:58,647 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:35:58,647 INFO  L479      AbstractCegarLoop]: Abstraction has 410 states and 461 transitions.
[2020-09-24 23:35:58,648 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 23:35:58,648 INFO  L276                IsEmpty]: Start isEmpty. Operand 410 states and 461 transitions.
[2020-09-24 23:35:58,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-24 23:35:58,655 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:35:58,655 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]
[2020-09-24 23:35:58,656 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 23:35:58,656 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:58,656 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:58,657 INFO  L82        PathProgramCache]: Analyzing trace with hash 296088031, now seen corresponding path program 1 times
[2020-09-24 23:35:58,657 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:58,657 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545474171]
[2020-09-24 23:35:58,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:58,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:58,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:58,985 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,016 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,016 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 206
[2020-09-24 23:36:02,016 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 23:36:02,017 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3301
[2020-09-24 23:36:02,017 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,017 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 23:36:02,017 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 23:36:02,017 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 109
[2020-09-24 23:36:02,018 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,355 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:36:02,356 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:36:02,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,430 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,656 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,656 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:36:02,656 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,657 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 262
[2020-09-24 23:36:02,657 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:02,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 23:36:02,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,704 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:36:02,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,708 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,712 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,712 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:02,712 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,713 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 23:36:02,713 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,713 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:02,713 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,713 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:36:02,714 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,715 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:36:02,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,717 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,723 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,723 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:02,723 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,723 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 23:36:02,724 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:02,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:36:02,725 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,726 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:36:02,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,729 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,736 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,737 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:02,737 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,737 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 23:36:02,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:02,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:36:02,739 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:02,741 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:36:02,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,743 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,747 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,747 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:02,747 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,747 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:36:02,748 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:02,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:36:02,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,759 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 23:36:02,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,764 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,767 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,767 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-24 23:36:02,768 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,768 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:36:02,768 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,768 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:02,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 23:36:02,769 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,772 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 23:36:02,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,775 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,776 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 23:36:02,776 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,776 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:36:02,776 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:02,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:02,777 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:02,779 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 23:36:02,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,781 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,782 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,783 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:02,783 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,783 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:36:02,783 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:02,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:02,785 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:02,786 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 23:36:02,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,789 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,791 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,792 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:02,792 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,792 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:36:02,792 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,793 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:02,793 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,793 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:36:02,793 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,798 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-24 23:36:02,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,802 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,809 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,810 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:02,810 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,810 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 23:36:02,810 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 23:36:02,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:02,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:36:02,811 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,851 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-24 23:36:02,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:02,854 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:02,855 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:02,855 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:02,856 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:02,856 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:36:02,856 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:02,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:02,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:36:02,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:02,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:02,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 23:36:02,891 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545474171]
[2020-09-24 23:36:02,892 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:36:02,892 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 23:36:02,892 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243615462]
[2020-09-24 23:36:02,896 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 23:36:02,897 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:36:02,897 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 23:36:02,897 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 23:36:02,897 INFO  L87              Difference]: Start difference. First operand 410 states and 461 transitions. Second operand 9 states.
[2020-09-24 23:36:03,481 WARN  L193               SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:36:05,668 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:06,000 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:36:06,351 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:06,702 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:36:07,007 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:36:07,353 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:07,639 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:09,134 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:36:09,134 INFO  L93              Difference]: Finished difference Result 1213 states and 1562 transitions.
[2020-09-24 23:36:09,135 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-24 23:36:09,135 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 167
[2020-09-24 23:36:09,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:36:09,147 INFO  L225             Difference]: With dead ends: 1213
[2020-09-24 23:36:09,148 INFO  L226             Difference]: Without dead ends: 866
[2020-09-24 23:36:09,155 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-24 23:36:09,157 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 866 states.
[2020-09-24 23:36:09,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 687.
[2020-09-24 23:36:09,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 687 states.
[2020-09-24 23:36:09,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 793 transitions.
[2020-09-24 23:36:09,333 INFO  L78                 Accepts]: Start accepts. Automaton has 687 states and 793 transitions. Word has length 167
[2020-09-24 23:36:09,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:36:09,334 INFO  L479      AbstractCegarLoop]: Abstraction has 687 states and 793 transitions.
[2020-09-24 23:36:09,334 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 23:36:09,335 INFO  L276                IsEmpty]: Start isEmpty. Operand 687 states and 793 transitions.
[2020-09-24 23:36:09,340 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 23:36:09,340 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:36:09,340 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]
[2020-09-24 23:36:09,341 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 23:36:09,341 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:36:09,341 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:36:09,341 INFO  L82        PathProgramCache]: Analyzing trace with hash 1825655940, now seen corresponding path program 1 times
[2020-09-24 23:36:09,342 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:36:09,342 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497189037]
[2020-09-24 23:36:09,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:36:09,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 23:36:09,411 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 23:36:09,411 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 23:36:09,417 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 23:36:09,445 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:36:09 BoogieIcfgContainer
[2020-09-24 23:36:09,445 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 23:36:09,448 INFO  L168              Benchmark]: Toolchain (without parser) took 23060.12 ms. Allocated memory was 140.5 MB in the beginning and 575.1 MB in the end (delta: 434.6 MB). Free memory was 103.1 MB in the beginning and 501.8 MB in the end (delta: -398.7 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:09,448 INFO  L168              Benchmark]: CDTParser took 0.20 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.
[2020-09-24 23:36:09,449 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 703.16 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 173.3 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:09,450 INFO  L168              Benchmark]: Boogie Preprocessor took 103.17 ms. Allocated memory is still 203.9 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:09,451 INFO  L168              Benchmark]: RCFGBuilder took 1326.48 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 168.5 MB in the beginning and 175.4 MB in the end (delta: -6.8 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:09,452 INFO  L168              Benchmark]: TraceAbstraction took 20915.61 ms. Allocated memory was 236.5 MB in the beginning and 575.1 MB in the end (delta: 338.7 MB). Free memory was 175.4 MB in the beginning and 501.8 MB in the end (delta: -326.4 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:09,456 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 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 703.16 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 173.3 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 103.17 ms. Allocated memory is still 203.9 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1326.48 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 168.5 MB in the beginning and 175.4 MB in the end (delta: -6.8 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20915.61 ms. Allocated memory was 236.5 MB in the beginning and 575.1 MB in the end (delta: 338.7 MB). Free memory was 175.4 MB in the beginning and 501.8 MB in the end (delta: -326.4 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 712]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L489]              int pumpRunning  =    0;
[L490]              int systemActive  =    1;
[L717]              int cleanupTimeShifts  =    4;
[L886]              int waterLevel  =    1;
[L887]              int methaneLevelCritical  =    0;
[L793]              int retValue_acc ;
[L794]              int tmp ;
[L798]  FCALL       select_helpers()
[L799]  FCALL       select_features()
[L800]  CALL, EXPR  valid_product()
[L877]              int retValue_acc ;
[L880]              retValue_acc = 1
[L881]              return (retValue_acc);
[L800]  RET, EXPR   valid_product()
[L800]              tmp = valid_product()
[L802]  COND TRUE   \read(tmp)
[L804]  FCALL       setup()
[L805]  CALL        runTest()
[L784]  CALL        test()
[L413]              int splverifierCounter ;
[L414]              int tmp ;
[L415]              int tmp___0 ;
[L416]              int tmp___1 ;
[L417]              int tmp___2 ;
[L420]              splverifierCounter = 0
[L422]  COND TRUE   1
[L424]  COND TRUE   splverifierCounter < 4
[L430]              tmp = __VERIFIER_nondet_int()
[L432]  COND TRUE   \read(tmp)
[L434]  CALL        waterRise()
[L904]  COND TRUE   waterLevel < 2
[L905]              waterLevel = waterLevel + 1
[L434]  RET         waterRise()
[L440]              tmp___0 = __VERIFIER_nondet_int()
[L442]  COND FALSE  !(\read(tmp___0))
[L450]              tmp___2 = __VERIFIER_nondet_int()
[L452]  COND FALSE  !(\read(tmp___2))
[L458]              tmp___1 = __VERIFIER_nondet_int()
[L460]  COND TRUE   \read(tmp___1)
[L462]  CALL        stopSystem()
[L688]  COND FALSE  !(\read(pumpRunning))
[L695]              systemActive = 0
[L462]  RET         stopSystem()
[L469]  CALL        timeShift()
[L497]  COND FALSE  !(\read(pumpRunning))
[L504]  COND FALSE  !(\read(systemActive))
[L512]  CALL        __utac_acc__Specification3_spec__1()
[L818]              int tmp ;
[L819]              int tmp___0 ;
[L820]              int tmp___1 ;
[L824]  CALL, EXPR  isMethaneLevelCritical()
[L925]              int retValue_acc ;
[L928]              retValue_acc = methaneLevelCritical
[L929]              return (retValue_acc);
[L824]  RET, EXPR   isMethaneLevelCritical()
[L824]              tmp = isMethaneLevelCritical()
[L826]  COND FALSE  !(\read(tmp))
[L830]  CALL, EXPR  getWaterLevel()
[L957]              int retValue_acc ;
[L960]              retValue_acc = waterLevel
[L961]              return (retValue_acc);
[L830]  RET, EXPR   getWaterLevel()
[L830]              tmp___0 = getWaterLevel()
[L832]  COND TRUE   tmp___0 == 2
[L834]  CALL, EXPR  isPumpRunning()
[L621]              int retValue_acc ;
[L624]              retValue_acc = pumpRunning
[L625]              return (retValue_acc);
[L834]  RET, EXPR   isPumpRunning()
[L834]              tmp___1 = isPumpRunning()
[L836]  COND FALSE  !(\read(tmp___1))
[L840]  CALL        __automaton_fail()
[L712]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 41 procedures, 640 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 980 SDslu, 713 SDs, 0 SdLazy, 1901 SolverSat, 355 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 251 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 134878 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...