/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product10.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 12:03:19,464 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 12:03:19,468 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 12:03:19,517 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 12:03:19,517 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 12:03:19,528 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 12:03:19,530 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 12:03:19,535 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 12:03:19,538 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 12:03:19,542 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 12:03:19,543 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 12:03:19,544 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 12:03:19,545 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 12:03:19,548 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 12:03:19,551 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 12:03:19,553 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 12:03:19,555 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 12:03:19,557 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 12:03:19,559 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 12:03:19,570 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 12:03:19,572 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 12:03:19,574 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 12:03:19,575 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 12:03:19,576 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 12:03:19,579 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 12:03:19,579 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 12:03:19,579 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 12:03:19,583 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 12:03:19,583 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 12:03:19,584 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 12:03:19,585 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 12:03:19,586 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 12:03:19,587 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 12:03:19,588 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 12:03:19,589 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 12:03:19,589 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 12:03:19,590 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 12:03:19,590 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 12:03:19,591 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 12:03:19,592 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 12:03:19,593 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 12:03:19,594 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 12:03:19,645 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 12:03:19,646 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 12:03:19,648 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 12:03:19,648 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 12:03:19,649 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 12:03:19,649 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 12:03:19,649 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 12:03:19,650 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 12:03:19,650 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 12:03:19,650 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 12:03:19,651 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 12:03:19,651 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 12:03:19,652 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 12:03:19,652 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 12:03:19,652 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 12:03:19,653 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 12:03:19,653 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 12:03:19,653 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 12:03:19,653 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 12:03:19,654 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 12:03:19,654 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 12:03:19,654 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 12:03:19,654 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 12:03:19,654 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 12:03:19,655 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 12:03:19,655 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 12:03:19,655 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 12:03:19,655 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 12:03:19,655 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 12:03:19,656 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
[2020-09-25 12:03:20,119 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 12:03:20,146 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 12:03:20,151 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 12:03:20,153 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 12:03:20,154 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 12:03:20,155 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-25 12:03:20,245 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fdb47f29/4d45acb0e425433f9a5d021a243b52e5/FLAG1a3ba815d
[2020-09-25 12:03:20,882 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 12:03:20,883 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-25 12:03:20,899 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fdb47f29/4d45acb0e425433f9a5d021a243b52e5/FLAG1a3ba815d
[2020-09-25 12:03:20,920 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fdb47f29/4d45acb0e425433f9a5d021a243b52e5
[2020-09-25 12:03:20,937 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 12:03:20,944 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 12:03:20,945 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 12:03:20,945 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 12:03:20,950 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 12:03:20,952 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:03:20" (1/1) ...
[2020-09-25 12:03:20,957 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3ca2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:20, skipping insertion in model container
[2020-09-25 12:03:20,957 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:03:20" (1/1) ...
[2020-09-25 12:03:20,968 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 12:03:21,018 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 12:03:21,582 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:03:21,599 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 12:03:21,677 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:03:21,713 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 12:03:21,714 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21 WrapperNode
[2020-09-25 12:03:21,714 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 12:03:21,715 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 12:03:21,715 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 12:03:21,715 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 12:03:21,733 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (1/1) ...
[2020-09-25 12:03:21,733 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (1/1) ...
[2020-09-25 12:03:21,775 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (1/1) ...
[2020-09-25 12:03:21,775 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (1/1) ...
[2020-09-25 12:03:21,820 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (1/1) ...
[2020-09-25 12:03:21,833 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (1/1) ...
[2020-09-25 12:03:21,838 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (1/1) ...
[2020-09-25 12:03:21,856 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 12:03:21,861 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 12:03:21,861 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 12:03:21,861 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 12:03:21,863 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (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 12:03:21,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 12:03:21,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 12:03:21,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:03:21,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 12:03:21,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 12:03:21,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 12:03:21,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 12:03:21,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 12:03:21,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 12:03:21,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 12:03:21,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 12:03:21,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 12:03:21,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 12:03:21,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 12:03:21,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 12:03:21,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 12:03:21,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:03:21,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 12:03:21,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 12:03:21,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 12:03:21,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 12:03:21,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 12:03:21,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 12:03:21,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 12:03:21,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 12:03:21,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 12:03:21,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 12:03:21,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 12:03:21,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 12:03:21,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 12:03:21,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:03:21,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 12:03:21,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 12:03:21,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 12:03:21,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 12:03:21,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 12:03:21,967 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 12:03:21,968 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 12:03:21,968 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 12:03:21,968 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 12:03:21,968 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 12:03:21,968 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 12:03:21,968 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 12:03:21,968 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 12:03:21,969 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 12:03:21,969 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 12:03:21,969 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 12:03:21,970 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 12:03:21,970 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 12:03:21,971 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 12:03:21,971 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 12:03:21,971 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 12:03:21,972 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 12:03:21,972 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 12:03:21,972 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 12:03:21,972 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 12:03:21,972 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 12:03:21,972 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 12:03:21,973 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 12:03:21,973 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 12:03:21,973 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 12:03:21,973 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:03:21,973 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:03:21,974 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 12:03:21,974 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 12:03:21,974 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 12:03:21,974 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 12:03:21,974 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 12:03:21,974 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 12:03:21,975 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 12:03:21,976 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 12:03:21,976 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 12:03:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 12:03:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 12:03:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 12:03:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:03:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 12:03:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 12:03:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 12:03:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 12:03:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 12:03:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 12:03:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 12:03:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 12:03:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 12:03:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 12:03:23,202 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 12:03:23,203 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 12:03:23,210 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:23 BoogieIcfgContainer
[2020-09-25 12:03:23,210 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 12:03:23,212 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 12:03:23,212 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 12:03:23,216 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 12:03:23,216 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:03:20" (1/3) ...
[2020-09-25 12:03:23,217 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7532af5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:23, skipping insertion in model container
[2020-09-25 12:03:23,218 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21" (2/3) ...
[2020-09-25 12:03:23,218 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7532af5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:23, skipping insertion in model container
[2020-09-25 12:03:23,218 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:23" (3/3) ...
[2020-09-25 12:03:23,220 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c
[2020-09-25 12:03:23,233 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 12:03:23,245 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 12:03:23,265 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 12:03:23,293 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 12:03:23,293 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 12:03:23,293 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 12:03:23,293 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 12:03:23,293 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 12:03:23,293 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 12:03:23,294 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 12:03:23,294 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 12:03:23,321 INFO  L276                IsEmpty]: Start isEmpty. Operand 272 states.
[2020-09-25 12:03:23,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 12:03:23,339 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:23,341 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 12:03:23,341 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:23,349 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:23,350 INFO  L82        PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times
[2020-09-25 12:03:23,362 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:23,363 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867729847]
[2020-09-25 12:03:23,363 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:23,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:23,829 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:24,106 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:25,493 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:28,734 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:28,734 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 12:03:28,735 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 12:03:28,735 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5029
[2020-09-25 12:03:28,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:28,739 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:28,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 12:03:28,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 12:03:28,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-25 12:03:28,740 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 12:03:29,209 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:03:29,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:03:29,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,578 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,578 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:03:29,578 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,579 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 284
[2020-09-25 12:03:29,579 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,588 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,589 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:29,589 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:29,589 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 12:03:29,590 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-25 12:03:29,699 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:03:29,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,705 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,710 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,710 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:29,710 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,711 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 12:03:29,711 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,711 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:29,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:29,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:29,712 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:29,715 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:03:29,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,726 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,726 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:29,727 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 12:03:29,727 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,728 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:29,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:29,729 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:29,729 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:29,732 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:03:29,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,737 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,748 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,749 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:29,749 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,750 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 12:03:29,750 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,750 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:29,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:29,752 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:29,752 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:29,754 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:03:29,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,758 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,764 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,765 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:29,765 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,765 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 12:03:29,766 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,766 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:29,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:29,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:29,768 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:29,772 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 12:03:29,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,776 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,781 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:29,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,782 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 12:03:29,783 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,783 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:29,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:29,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:29,785 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:29,787 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 12:03:29,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,801 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,802 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:29,802 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,802 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 12:03:29,802 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,803 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 12:03:29,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:29,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:29,804 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:29,848 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 12:03:29,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:29,854 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:29,858 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:29,858 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:29,858 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:29,859 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 12:03:29,859 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:29,860 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:29,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:29,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:29,861 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:29,861 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:29,914 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 12:03:29,915 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867729847]
[2020-09-25 12:03:29,917 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:03:29,918 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 12:03:29,919 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779858431]
[2020-09-25 12:03:29,931 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 12:03:29,932 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:03:29,958 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 12:03:29,960 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 12:03:29,964 INFO  L87              Difference]: Start difference. First operand 272 states. Second operand 8 states.
[2020-09-25 12:03:30,678 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:32,095 WARN  L193               SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:32,465 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:03:32,837 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:33,205 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:33,557 WARN  L193               SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:03:33,885 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:34,203 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:35,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:03:35,054 INFO  L93              Difference]: Finished difference Result 466 states and 571 transitions.
[2020-09-25 12:03:35,059 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 12:03:35,061 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 12:03:35,062 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:03:35,083 INFO  L225             Difference]: With dead ends: 466
[2020-09-25 12:03:35,083 INFO  L226             Difference]: Without dead ends: 323
[2020-09-25 12:03:35,089 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 12:03:35,108 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323 states.
[2020-09-25 12:03:35,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 290.
[2020-09-25 12:03:35,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-25 12:03:35,204 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 325 transitions.
[2020-09-25 12:03:35,207 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 325 transitions. Word has length 153
[2020-09-25 12:03:35,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:03:35,208 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 325 transitions.
[2020-09-25 12:03:35,208 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 12:03:35,208 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 325 transitions.
[2020-09-25 12:03:35,215 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 12:03:35,215 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:35,215 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 12:03:35,216 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 12:03:35,216 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:35,216 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:35,217 INFO  L82        PathProgramCache]: Analyzing trace with hash -1230628687, now seen corresponding path program 1 times
[2020-09-25 12:03:35,217 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:35,217 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258380087]
[2020-09-25 12:03:35,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:35,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:35,361 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:35,714 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:35,714 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 12:03:35,715 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:35,715 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 412
[2020-09-25 12:03:35,715 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:35,715 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:35,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:35,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 12:03:35,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 12:03:35,716 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,014 WARN  L193               SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:03:36,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:03:36,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,031 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,136 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,137 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:03:36,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 114
[2020-09-25 12:03:36,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,138 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:36,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,139 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,176 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:03:36,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,178 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,180 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,181 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:36,181 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,181 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:36,181 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,182 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,182 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,182 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:36,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,183 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,184 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:03:36,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,186 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,188 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,188 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:36,188 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,188 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:36,189 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,189 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:36,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,190 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,191 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:03:36,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,198 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,198 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:36,202 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,202 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:03:36,202 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,202 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:36,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,203 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 12:03:36,207 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:03:36,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,208 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,213 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,213 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:36,214 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,214 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:03:36,214 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,214 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:36,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,218 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 12:03:36,226 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 12:03:36,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,233 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,234 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 12:03:36,234 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,234 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:03:36,266 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,266 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:36,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,267 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,280 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 12:03:36,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,283 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,286 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,286 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 12:03:36,286 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,286 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 12:03:36,287 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,287 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:36,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:36,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 12:03:36,288 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 12:03:36,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,292 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,294 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,294 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:36,294 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,294 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:36,295 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,295 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:36,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,296 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,297 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 12:03:36,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,299 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,300 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,301 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:36,301 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,301 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:36,301 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,302 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:36,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,303 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,304 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 12:03:36,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:36,306 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:36,308 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:36,308 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:36,308 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:36,308 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:36,309 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:36,309 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:36,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:36,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:36,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:36,310 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:36,340 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 12:03:36,341 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258380087]
[2020-09-25 12:03:36,341 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:03:36,341 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 12:03:36,342 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013238108]
[2020-09-25 12:03:36,344 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 12:03:36,344 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:03:36,345 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 12:03:36,345 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 12:03:36,345 INFO  L87              Difference]: Start difference. First operand 290 states and 325 transitions. Second operand 6 states.
[2020-09-25 12:03:36,863 WARN  L193               SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:37,831 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:03:37,831 INFO  L93              Difference]: Finished difference Result 545 states and 668 transitions.
[2020-09-25 12:03:37,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 12:03:37,832 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 12:03:37,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:03:37,837 INFO  L225             Difference]: With dead ends: 545
[2020-09-25 12:03:37,837 INFO  L226             Difference]: Without dead ends: 365
[2020-09-25 12:03:37,840 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 12:03:37,841 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2020-09-25 12:03:37,897 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 290.
[2020-09-25 12:03:37,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-25 12:03:37,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 322 transitions.
[2020-09-25 12:03:37,901 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 322 transitions. Word has length 172
[2020-09-25 12:03:37,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:03:37,901 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 322 transitions.
[2020-09-25 12:03:37,901 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 12:03:37,902 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 322 transitions.
[2020-09-25 12:03:37,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 12:03:37,906 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:37,906 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 12:03:37,906 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 12:03:37,907 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:37,907 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:37,907 INFO  L82        PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times
[2020-09-25 12:03:37,907 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:37,908 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412682739]
[2020-09-25 12:03:37,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:37,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 12:03:37,980 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 12:03:37,981 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 12:03:37,987 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 12:03:38,015 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:03:38 BoogieIcfgContainer
[2020-09-25 12:03:38,015 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 12:03:38,018 INFO  L168              Benchmark]: Toolchain (without parser) took 17079.16 ms. Allocated memory was 146.8 MB in the beginning and 449.8 MB in the end (delta: 303.0 MB). Free memory was 102.2 MB in the beginning and 320.4 MB in the end (delta: -218.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:38,019 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 12:03:38,020 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 769.52 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.5 MB in the beginning and 173.9 MB in the end (delta: -72.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:38,021 INFO  L168              Benchmark]: Boogie Preprocessor took 141.83 ms. Allocated memory is still 205.0 MB. Free memory was 173.9 MB in the beginning and 168.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:38,022 INFO  L168              Benchmark]: RCFGBuilder took 1349.61 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.9 MB in the beginning and 179.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:38,023 INFO  L168              Benchmark]: TraceAbstraction took 14803.57 ms. Allocated memory was 236.5 MB in the beginning and 449.8 MB in the end (delta: 213.4 MB). Free memory was 179.9 MB in the beginning and 320.4 MB in the end (delta: -140.5 MB). Peak memory consumption was 72.9 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:38,027 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 769.52 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.5 MB in the beginning and 173.9 MB in the end (delta: -72.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 141.83 ms. Allocated memory is still 205.0 MB. Free memory was 173.9 MB in the beginning and 168.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1349.61 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.9 MB in the beginning and 179.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 14803.57 ms. Allocated memory was 236.5 MB in the beginning and 449.8 MB in the end (delta: 213.4 MB). Free memory was 179.9 MB in the beginning and 320.4 MB in the end (delta: -140.5 MB). Peak memory consumption was 72.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L84]               int waterLevel  =    1;
[L85]               int methaneLevelCritical  =    0;
[L342]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L613]              int pumpRunning  =    0;
[L614]              int systemActive  =    1;
[L781]              int cleanupTimeShifts  =    4;
[L854]              int retValue_acc ;
[L855]              int tmp ;
[L859]  FCALL       select_helpers()
[L860]  FCALL       select_features()
[L861]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L861]  RET, EXPR   valid_product()
[L861]              tmp = valid_product()
[L863]  COND TRUE   \read(tmp)
[L865]  FCALL       setup()
[L866]  CALL        runTest()
[L848]  CALL        test()
[L543]              int splverifierCounter ;
[L544]              int tmp ;
[L545]              int tmp___0 ;
[L546]              int tmp___1 ;
[L547]              int tmp___2 ;
[L550]              splverifierCounter = 0
[L552]  COND TRUE   1
[L554]  COND TRUE   splverifierCounter < 4
[L560]              tmp = __VERIFIER_nondet_int()
[L562]  COND TRUE   \read(tmp)
[L564]  CALL        waterRise()
[L102]  COND TRUE   waterLevel < 2
[L103]              waterLevel = waterLevel + 1
[L564]  RET         waterRise()
[L570]              tmp___0 = __VERIFIER_nondet_int()
[L572]  COND FALSE  !(\read(tmp___0))
[L580]              tmp___2 = __VERIFIER_nondet_int()
[L582]  COND TRUE   \read(tmp___2)
[L584]  CALL        startSystem()
[L742]              systemActive = 1
[L584]  RET         startSystem()
[L597]  CALL        timeShift()
[L621]  COND FALSE  !(\read(pumpRunning))
[L628]  COND TRUE   \read(systemActive)
[L630]  FCALL       processEnvironment()
[L636]  CALL        __utac_acc__Specification3_spec__1()
[L748]              int tmp ;
[L749]              int tmp___0 ;
[L750]              int tmp___1 ;
[L754]  CALL, EXPR  isMethaneLevelCritical()
[L123]              int retValue_acc ;
[L126]              retValue_acc = methaneLevelCritical
[L127]              return (retValue_acc);
[L754]  RET, EXPR   isMethaneLevelCritical()
[L754]              tmp = isMethaneLevelCritical()
[L756]  COND FALSE  !(\read(tmp))
[L760]  CALL, EXPR  getWaterLevel()
[L155]              int retValue_acc ;
[L158]              retValue_acc = waterLevel
[L159]              return (retValue_acc);
[L760]  RET, EXPR   getWaterLevel()
[L760]              tmp___0 = getWaterLevel()
[L762]  COND TRUE   tmp___0 == 2
[L764]  CALL, EXPR  isPumpRunning()
[L694]              int retValue_acc ;
[L697]              retValue_acc = pumpRunning
[L698]              return (retValue_acc);
[L764]  RET, EXPR   isPumpRunning()
[L764]              tmp___1 = isPumpRunning()
[L766]  COND FALSE  !(\read(tmp___1))
[L770]  CALL        __automaton_fail()
[L168]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 591 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, 845 SDslu, 711 SDs, 0 SdLazy, 1152 SolverSat, 262 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.3s 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, 129048 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...