/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:57:54,668 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:57:54,672 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:57:54,706 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:57:54,707 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:57:54,708 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:57:54,715 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:57:54,719 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:57:54,721 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:57:54,722 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:57:54,726 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:57:54,729 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:57:54,729 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:57:54,730 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:57:54,731 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:57:54,733 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:57:54,734 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:57:54,739 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:57:54,742 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:57:54,748 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:57:54,754 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:57:54,755 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:57:54,758 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:57:54,759 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:57:54,763 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:57:54,763 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:57:54,764 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:57:54,766 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:57:54,767 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:57:54,770 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:57:54,770 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:57:54,771 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:57:54,772 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:57:54,774 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:57:54,775 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:57:54,775 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:57:54,776 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:57:54,776 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:57:54,777 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:57:54,778 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:57:54,779 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:57:54,780 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 02:57:54,838 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 02:57:54,839 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:57:54,841 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:57:54,842 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 02:57:54,842 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 02:57:54,842 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:57:54,843 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 02:57:54,843 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 02:57:54,843 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 02:57:54,843 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 02:57:54,844 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:57:54,845 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:57:54,845 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:57:54,845 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 02:57:54,845 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 02:57:54,846 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 02:57:54,846 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:57:54,846 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:57:54,846 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 02:57:54,847 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 02:57:54,847 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 02:57:54,847 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:57:54,847 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:57:54,847 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:57:54,848 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:57:54,848 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 02:57:54,848 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:57:54,848 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:57:54,848 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 02:57:54,849 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
[2020-09-25 02:57:55,294 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:57:55,311 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:57:55,315 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:57:55,317 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 02:57:55,318 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 02:57:55,319 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-09-25 02:57:55,397 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6431d688b/57495966656f4ff3ad7343310052da21/FLAGe7d1cf36e
[2020-09-25 02:57:55,995 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 02:57:55,996 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-09-25 02:57:56,009 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6431d688b/57495966656f4ff3ad7343310052da21/FLAGe7d1cf36e
[2020-09-25 02:57:56,283 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6431d688b/57495966656f4ff3ad7343310052da21
[2020-09-25 02:57:56,296 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:57:56,301 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:57:56,302 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:57:56,303 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:57:56,308 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:57:56,309 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:56" (1/1) ...
[2020-09-25 02:57:56,313 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68320178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:56, skipping insertion in model container
[2020-09-25 02:57:56,313 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:56" (1/1) ...
[2020-09-25 02:57:56,320 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 02:57:56,393 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:57:56,746 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:57:56,762 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 02:57:56,966 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:57:57,005 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 02:57:57,006 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57 WrapperNode
[2020-09-25 02:57:57,006 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:57:57,007 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:57:57,007 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:57:57,007 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:57:57,025 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
[2020-09-25 02:57:57,026 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
[2020-09-25 02:57:57,047 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
[2020-09-25 02:57:57,048 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
[2020-09-25 02:57:57,085 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
[2020-09-25 02:57:57,096 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
[2020-09-25 02:57:57,102 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
[2020-09-25 02:57:57,110 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:57:57,110 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:57:57,111 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:57:57,111 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:57:57,112 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:57:57,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:57:57,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:57:57,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:57:57,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 02:57:57,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 02:57:57,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 02:57:57,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 02:57:57,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 02:57:57,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 02:57:57,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 02:57:57,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:57:57,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 02:57:57,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 02:57:57,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 02:57:57,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 02:57:57,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 02:57:57,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 02:57:57,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 02:57:57,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 02:57:57,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 02:57:57,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 02:57:57,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 02:57:57,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:57:57,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 02:57:57,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 02:57:57,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 02:57:57,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 02:57:57,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 02:57:57,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:57:57,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 02:57:57,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 02:57:57,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 02:57:57,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 02:57:57,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 02:57:57,202 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 02:57:57,202 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:57:57,202 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 02:57:57,202 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 02:57:57,202 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 02:57:57,202 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 02:57:57,203 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 02:57:57,203 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 02:57:57,203 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 02:57:57,203 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 02:57:57,203 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 02:57:57,203 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 02:57:57,204 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 02:57:57,204 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 02:57:57,204 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 02:57:57,204 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 02:57:57,204 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 02:57:57,204 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 02:57:57,205 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 02:57:57,205 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:57:57,205 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:57:57,205 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 02:57:57,205 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 02:57:57,205 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 02:57:57,206 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 02:57:57,206 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 02:57:57,206 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 02:57:57,206 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 02:57:57,206 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 02:57:57,206 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 02:57:57,207 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 02:57:57,207 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 02:57:57,207 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 02:57:57,207 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 02:57:57,207 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 02:57:57,207 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:57:57,208 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 02:57:57,208 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 02:57:57,208 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 02:57:57,208 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 02:57:57,208 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 02:57:57,208 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 02:57:57,208 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 02:57:57,209 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 02:57:57,209 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 02:57:57,209 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 02:57:57,209 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:57:57,209 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:57:57,209 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 02:57:57,210 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:57:58,429 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:57:58,430 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 02:57:58,437 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:58 BoogieIcfgContainer
[2020-09-25 02:57:58,438 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:57:58,439 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:57:58,439 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:57:58,443 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:57:58,444 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:57:56" (1/3) ...
[2020-09-25 02:57:58,445 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d1554f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:58, skipping insertion in model container
[2020-09-25 02:57:58,445 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:57" (2/3) ...
[2020-09-25 02:57:58,446 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d1554f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:58, skipping insertion in model container
[2020-09-25 02:57:58,446 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:58" (3/3) ...
[2020-09-25 02:57:58,448 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c
[2020-09-25 02:57:58,462 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:57:58,475 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:57:58,499 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:57:58,537 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:57:58,537 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 02:57:58,537 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:57:58,537 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:57:58,538 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:57:58,538 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 02:57:58,538 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:57:58,538 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:57:58,569 INFO  L276                IsEmpty]: Start isEmpty. Operand 262 states.
[2020-09-25 02:57:58,588 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 02:57:58,589 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:57:58,590 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:57:58,591 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:57:58,599 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:57:58,600 INFO  L82        PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times
[2020-09-25 02:57:58,614 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:57:58,614 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413971746]
[2020-09-25 02:57:58,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:57:58,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:57:59,135 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:57:59,353 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:01,027 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:03,983 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:03,984 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 02:58:03,984 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:58:03,985 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5011
[2020-09-25 02:58:03,988 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:03,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:58:03,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 02:58:03,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 02:58:03,989 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 02:58:04,475 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:04,481 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:04,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:04,585 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:04,862 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:04,862 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:04,862 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:04,864 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 325
[2020-09-25 02:58:04,864 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:04,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:04,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:04,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 02:58:04,874 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-09-25 02:58:05,010 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:05,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:05,016 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:05,023 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:05,023 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:05,023 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:05,024 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 02:58:05,024 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:05,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:05,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:05,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:05,025 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:05,028 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:05,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:05,032 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:05,035 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:05,036 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:05,036 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:05,036 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:05,037 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:05,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:05,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:05,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:05,038 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:05,041 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:05,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:05,045 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:05,055 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:05,056 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:05,056 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:05,056 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 02:58:05,057 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:05,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:05,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:05,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:05,058 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:05,060 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:05,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:05,064 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:05,068 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:05,069 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:05,069 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:05,069 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:05,069 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:05,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:05,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:05,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:05,071 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:05,075 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 02:58:05,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:05,078 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:05,083 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:05,083 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:05,084 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:05,084 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 02:58:05,084 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:05,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:05,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:05,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:05,085 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:05,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 02:58:05,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:05,091 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:05,099 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:05,100 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:05,100 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:05,100 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:58:05,100 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:05,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:58:05,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:05,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:05,101 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:05,131 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 02:58:05,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:05,136 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:05,138 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:05,138 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:05,138 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:05,139 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:05,139 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:05,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:05,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:05,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:05,140 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:05,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:58:05,183 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413971746]
[2020-09-25 02:58:05,186 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:05,186 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 02:58:05,187 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676807154]
[2020-09-25 02:58:05,199 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:58:05,199 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:05,219 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:58:05,220 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:58:05,223 INFO  L87              Difference]: Start difference. First operand 262 states. Second operand 8 states.
[2020-09-25 02:58:05,904 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:07,240 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:07,567 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:07,935 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:08,283 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:08,629 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:08,964 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:09,289 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:10,132 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:10,133 INFO  L93              Difference]: Finished difference Result 466 states and 571 transitions.
[2020-09-25 02:58:10,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 02:58:10,136 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 02:58:10,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:10,171 INFO  L225             Difference]: With dead ends: 466
[2020-09-25 02:58:10,171 INFO  L226             Difference]: Without dead ends: 323
[2020-09-25 02:58:10,180 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 02:58:10,204 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323 states.
[2020-09-25 02:58:10,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 290.
[2020-09-25 02:58:10,313 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-25 02:58:10,316 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 325 transitions.
[2020-09-25 02:58:10,318 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 325 transitions. Word has length 153
[2020-09-25 02:58:10,319 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:10,320 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 325 transitions.
[2020-09-25 02:58:10,320 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:58:10,320 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 325 transitions.
[2020-09-25 02:58:10,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 02:58:10,326 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:10,326 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:58:10,327 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:58:10,327 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:10,327 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:10,328 INFO  L82        PathProgramCache]: Analyzing trace with hash -744495704, now seen corresponding path program 1 times
[2020-09-25 02:58:10,328 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:10,328 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970670255]
[2020-09-25 02:58:10,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:10,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:10,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:10,794 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:10,794 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 02:58:10,794 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:10,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 400
[2020-09-25 02:58:10,795 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:10,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:10,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 02:58:10,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 02:58:10,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:11,089 WARN  L193               SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:11,092 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:11,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,110 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,240 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,241 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:11,241 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,241 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 138
[2020-09-25 02:58:11,241 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:11,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,242 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:11,274 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:11,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,276 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,278 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,279 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:11,279 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,279 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:11,280 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:11,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,281 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:11,282 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:11,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,284 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,286 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,286 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:11,287 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,287 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:11,287 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:11,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,289 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:11,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:11,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,292 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,296 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,297 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:11,297 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,297 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:11,297 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:11,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,298 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:11,300 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:11,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,302 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,304 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,304 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:11,304 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,305 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:11,305 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:11,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,306 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:11,320 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 02:58:11,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,325 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 02:58:11,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:11,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:11,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:11,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 02:58:11,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,344 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,345 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 02:58:11,345 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,345 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:11,345 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:11,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:11,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 02:58:11,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:11,349 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 02:58:11,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,351 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,353 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:11,354 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,354 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:11,354 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,355 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,355 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:11,355 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,356 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:11,357 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 02:58:11,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,360 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,361 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,362 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:11,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,362 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:11,363 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:11,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,364 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:11,365 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 02:58:11,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:11,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:11,370 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:11,370 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:11,371 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:11,371 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:11,371 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:11,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:11,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:11,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:11,372 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:11,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:58:11,422 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970670255]
[2020-09-25 02:58:11,423 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:11,423 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 02:58:11,423 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420098759]
[2020-09-25 02:58:11,425 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 02:58:11,426 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:11,426 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 02:58:11,426 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 02:58:11,426 INFO  L87              Difference]: Start difference. First operand 290 states and 325 transitions. Second operand 6 states.
[2020-09-25 02:58:11,969 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:13,082 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:13,083 INFO  L93              Difference]: Finished difference Result 545 states and 668 transitions.
[2020-09-25 02:58:13,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 02:58:13,084 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 02:58:13,085 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:13,089 INFO  L225             Difference]: With dead ends: 545
[2020-09-25 02:58:13,089 INFO  L226             Difference]: Without dead ends: 365
[2020-09-25 02:58:13,093 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 02:58:13,094 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2020-09-25 02:58:13,144 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 290.
[2020-09-25 02:58:13,144 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-25 02:58:13,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 322 transitions.
[2020-09-25 02:58:13,147 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 322 transitions. Word has length 172
[2020-09-25 02:58:13,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:13,148 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 322 transitions.
[2020-09-25 02:58:13,148 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 02:58:13,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 322 transitions.
[2020-09-25 02:58:13,151 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 02:58:13,152 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:13,152 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:58:13,152 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:58:13,153 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:13,153 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:13,153 INFO  L82        PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times
[2020-09-25 02:58:13,153 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:13,154 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117609860]
[2020-09-25 02:58:13,154 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:13,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:58:13,223 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:58:13,223 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:58:13,229 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:58:13,256 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:58:13 BoogieIcfgContainer
[2020-09-25 02:58:13,256 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:58:13,258 INFO  L168              Benchmark]: Toolchain (without parser) took 16960.35 ms. Allocated memory was 147.8 MB in the beginning and 437.8 MB in the end (delta: 289.9 MB). Free memory was 101.7 MB in the beginning and 239.0 MB in the end (delta: -137.3 MB). Peak memory consumption was 152.6 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:13,259 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 02:58:13,260 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 704.06 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 176.2 MB in the end (delta: -75.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:13,261 INFO  L168              Benchmark]: Boogie Preprocessor took 103.21 ms. Allocated memory is still 205.0 MB. Free memory was 176.2 MB in the beginning and 172.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:13,262 INFO  L168              Benchmark]: RCFGBuilder took 1327.50 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 171.4 MB in the beginning and 181.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:13,263 INFO  L168              Benchmark]: TraceAbstraction took 14817.01 ms. Allocated memory was 235.4 MB in the beginning and 437.8 MB in the end (delta: 202.4 MB). Free memory was 181.3 MB in the beginning and 239.0 MB in the end (delta: -57.7 MB). Peak memory consumption was 144.7 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:13,267 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 704.06 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 176.2 MB in the end (delta: -75.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 103.21 ms. Allocated memory is still 205.0 MB. Free memory was 176.2 MB in the beginning and 172.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1327.50 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 171.4 MB in the beginning and 181.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 14817.01 ms. Allocated memory was 235.4 MB in the beginning and 437.8 MB in the end (delta: 202.4 MB). Free memory was 181.3 MB in the beginning and 239.0 MB in the end (delta: -57.7 MB). Peak memory consumption was 144.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L256]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int pumpRunning  =    0;
[L463]              int systemActive  =    1;
[L683]              int cleanupTimeShifts  =    4;
[L779]              int waterLevel  =    1;
[L780]              int methaneLevelCritical  =    0;
[L756]              int retValue_acc ;
[L757]              int tmp ;
[L761]  FCALL       select_helpers()
[L762]  FCALL       select_features()
[L763]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L763]  RET, EXPR   valid_product()
[L763]              tmp = valid_product()
[L765]  COND TRUE   \read(tmp)
[L767]  FCALL       setup()
[L768]  CALL        runTest()
[L750]  CALL        test()
[L617]              int splverifierCounter ;
[L618]              int tmp ;
[L619]              int tmp___0 ;
[L620]              int tmp___1 ;
[L621]              int tmp___2 ;
[L624]              splverifierCounter = 0
[L626]  COND TRUE   1
[L628]  COND TRUE   splverifierCounter < 4
[L634]              tmp = __VERIFIER_nondet_int()
[L636]  COND TRUE   \read(tmp)
[L638]  CALL        waterRise()
[L797]  COND TRUE   waterLevel < 2
[L798]              waterLevel = waterLevel + 1
[L638]  RET         waterRise()
[L644]              tmp___0 = __VERIFIER_nondet_int()
[L646]  COND FALSE  !(\read(tmp___0))
[L654]              tmp___2 = __VERIFIER_nondet_int()
[L656]  COND TRUE   \read(tmp___2)
[L658]  CALL        startSystem()
[L573]              systemActive = 1
[L658]  RET         startSystem()
[L671]  CALL        timeShift()
[L470]  COND FALSE  !(\read(pumpRunning))
[L477]  COND TRUE   \read(systemActive)
[L479]  FCALL       processEnvironment()
[L485]  CALL        __utac_acc__Specification3_spec__1()
[L580]              int tmp ;
[L581]              int tmp___0 ;
[L582]              int tmp___1 ;
[L586]  CALL, EXPR  isMethaneLevelCritical()
[L818]              int retValue_acc ;
[L821]              retValue_acc = methaneLevelCritical
[L822]              return (retValue_acc);
[L586]  RET, EXPR   isMethaneLevelCritical()
[L586]              tmp = isMethaneLevelCritical()
[L588]  COND FALSE  !(\read(tmp))
[L592]  CALL, EXPR  getWaterLevel()
[L850]              int retValue_acc ;
[L853]              retValue_acc = waterLevel
[L854]              return (retValue_acc);
[L592]  RET, EXPR   getWaterLevel()
[L592]              tmp___0 = getWaterLevel()
[L594]  COND TRUE   tmp___0 == 2
[L596]  CALL, EXPR  isPumpRunning()
[L525]              int retValue_acc ;
[L528]              retValue_acc = pumpRunning
[L529]              return (retValue_acc);
[L596]  RET, EXPR   isPumpRunning()
[L596]              tmp___1 = isPumpRunning()
[L598]  COND FALSE  !(\read(tmp___1))
[L602]  CALL        __automaton_fail()
[L82]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 403 SDtfs, 786 SDslu, 704 SDs, 0 SdLazy, 1169 SolverSat, 227 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 127832 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...