/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=0.2 --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_product16.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:56:08,421 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:56:08,426 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:56:08,467 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:56:08,468 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:56:08,475 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:56:08,477 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:56:08,481 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:56:08,484 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:56:08,487 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:56:08,488 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:56:08,489 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:56:08,489 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:56:08,492 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:56:08,495 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:56:08,496 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:56:08,498 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:56:08,499 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:56:08,501 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:56:08,511 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:56:08,513 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:56:08,514 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:56:08,515 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:56:08,516 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:56:08,528 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:56:08,528 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:56:08,528 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:56:08,529 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:56:08,535 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:56:08,536 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:56:08,536 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:56:08,537 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:56:08,538 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:56:08,543 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:56:08,544 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:56:08,544 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:56:08,545 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:56:08,545 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:56:08,546 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:56:08,548 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:56:08,549 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:56:08,550 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 10:56:08,587 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:56:08,587 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:56:08,589 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:56:08,589 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:56:08,589 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:56:08,589 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:56:08,590 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:56:08,590 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:56:08,590 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:56:08,590 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:56:08,590 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:56:08,591 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:56:08,591 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:56:08,591 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:56:08,591 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:56:08,591 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:56:08,592 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:56:08,592 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:56:08,592 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:56:08,592 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:56:08,593 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:56:08,593 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:56:08,593 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:56:08,593 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:56:08,593 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:56:08,594 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:56:08,594 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:56:08,594 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:56:08,594 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:56:08,594 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true;
[2020-09-25 10:56:09,096 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:56:09,120 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:56:09,126 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:56:09,128 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:56:09,129 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:56:09,130 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-09-25 10:56:09,223 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a522512d/216d588d0e774ea9bed8035c0ee923f7/FLAG93cb6c88d
[2020-09-25 10:56:09,861 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:56:09,862 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-09-25 10:56:09,880 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a522512d/216d588d0e774ea9bed8035c0ee923f7/FLAG93cb6c88d
[2020-09-25 10:56:10,092 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a522512d/216d588d0e774ea9bed8035c0ee923f7
[2020-09-25 10:56:10,104 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:56:10,111 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:56:10,112 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:10,112 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:56:10,116 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:56:10,117 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,121 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10, skipping insertion in model container
[2020-09-25 10:56:10,121 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,131 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:56:10,199 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:56:10,580 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:10,602 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:56:10,788 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:10,824 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:56:10,824 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10 WrapperNode
[2020-09-25 10:56:10,824 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:10,825 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:56:10,825 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:56:10,826 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:56:10,841 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,841 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,863 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,863 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,892 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,903 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,909 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (1/1) ...
[2020-09-25 10:56:10,922 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:56:10,923 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:56:10,923 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:56:10,923 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:56:10,926 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (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 10:56:11,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:56:11,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:56:11,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:11,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:56:11,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:56:11,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:56:11,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:56:11,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:56:11,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:56:11,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:11,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:11,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:11,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:56:11,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:56:11,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:56:11,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:56:11,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:56:11,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 10:56:11,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:56:11,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 10:56:11,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:56:11,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:56:11,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:56:11,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:56:11,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:56:11,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:56:11,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 10:56:11,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:56:11,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:56:11,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:56:11,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:56:11,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:56:11,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:56:11,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:56:11,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:56:11,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:56:11,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:56:11,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:11,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:56:11,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:56:11,024 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:56:11,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:56:11,024 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:56:11,024 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:56:11,024 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:56:11,025 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:56:11,025 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:56:11,025 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:56:11,025 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:56:11,025 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:56:11,025 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:56:11,025 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:56:11,026 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:56:11,027 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:56:11,027 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:56:11,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:11,027 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:56:11,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:11,027 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:11,027 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:56:11,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:56:11,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:56:11,028 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:56:11,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:56:11,028 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 10:56:11,028 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:56:11,029 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:56:11,029 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:56:11,029 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:56:11,029 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:56:11,029 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:56:11,029 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:56:11,030 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:11,030 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:56:11,030 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 10:56:11,030 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:56:11,030 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 10:56:11,030 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:56:11,031 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:56:11,031 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:56:11,031 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:56:11,031 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:56:12,109 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:56:12,109 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:56:12,116 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:12 BoogieIcfgContainer
[2020-09-25 10:56:12,117 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:56:12,118 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:56:12,118 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:56:12,122 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:56:12,122 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:10" (1/3) ...
[2020-09-25 10:56:12,123 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148e81ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:12, skipping insertion in model container
[2020-09-25 10:56:12,123 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:10" (2/3) ...
[2020-09-25 10:56:12,123 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148e81ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:12, skipping insertion in model container
[2020-09-25 10:56:12,124 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:12" (3/3) ...
[2020-09-25 10:56:12,126 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c
[2020-09-25 10:56:12,136 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:56:12,147 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:56:12,167 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:56:12,196 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:56:12,196 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:56:12,196 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:56:12,196 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:56:12,196 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:56:12,196 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:56:12,197 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:56:12,197 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:56:12,223 INFO  L276                IsEmpty]: Start isEmpty. Operand 295 states.
[2020-09-25 10:56:12,240 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:56:12,240 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:12,242 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 10:56:12,242 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:12,248 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:12,249 INFO  L82        PathProgramCache]: Analyzing trace with hash -2058846521, now seen corresponding path program 1 times
[2020-09-25 10:56:12,259 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:12,259 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27796396]
[2020-09-25 10:56:12,260 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:12,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:12,739 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:12,930 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:14,276 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:17,686 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:17,687 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:56:17,687 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:17,687 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5045
[2020-09-25 10:56:17,692 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:17,692 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:17,694 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:56:17,694 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 10:56:17,694 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 10:56:17,695 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 10:56:18,169 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:18,172 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:18,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,477 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,486 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:18,486 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,487 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 256
[2020-09-25 10:56:18,487 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,487 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:18,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:18,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 10:56:18,488 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,585 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:18,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,589 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,593 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,593 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:18,594 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,594 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 10:56:18,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,594 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:18,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:18,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:18,596 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,598 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:18,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,601 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,604 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,604 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:18,604 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,604 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:18,605 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,605 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:18,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:18,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:18,606 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,608 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:18,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,620 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,621 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:18,621 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,621 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:56:18,621 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,621 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:18,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:18,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:18,622 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,625 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:18,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,628 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,632 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,633 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:18,633 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,633 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:18,633 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,633 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:18,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:18,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:18,634 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,637 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:56:18,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,640 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,644 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,645 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:18,645 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,645 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:18,645 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,645 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:18,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:18,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:18,646 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,648 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:56:18,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,651 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,659 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,659 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:18,659 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,659 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:56:18,660 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,660 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:56:18,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:18,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:18,661 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,687 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:56:18,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:18,691 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:18,693 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:18,693 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:18,694 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:18,694 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:18,694 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:18,694 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:18,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:18,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:18,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:18,696 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:18,789 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 10:56:18,791 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27796396]
[2020-09-25 10:56:18,794 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:18,794 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:56:18,796 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377177095]
[2020-09-25 10:56:18,806 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:56:18,807 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:18,827 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:56:18,830 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:56:18,834 INFO  L87              Difference]: Start difference. First operand 295 states. Second operand 8 states.
[2020-09-25 10:56:19,441 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:21,014 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:21,369 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:21,744 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:22,095 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:22,376 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:22,678 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:23,006 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:24,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:24,188 INFO  L93              Difference]: Finished difference Result 571 states and 710 transitions.
[2020-09-25 10:56:24,195 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:56:24,196 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:56:24,198 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:24,219 INFO  L225             Difference]: With dead ends: 571
[2020-09-25 10:56:24,219 INFO  L226             Difference]: Without dead ends: 397
[2020-09-25 10:56:24,226 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:56:24,248 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 397 states.
[2020-09-25 10:56:24,408 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 350.
[2020-09-25 10:56:24,410 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 350 states.
[2020-09-25 10:56:24,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 398 transitions.
[2020-09-25 10:56:24,419 INFO  L78                 Accepts]: Start accepts. Automaton has 350 states and 398 transitions. Word has length 153
[2020-09-25 10:56:24,422 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:24,422 INFO  L479      AbstractCegarLoop]: Abstraction has 350 states and 398 transitions.
[2020-09-25 10:56:24,422 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:56:24,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 350 states and 398 transitions.
[2020-09-25 10:56:24,439 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 10:56:24,439 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:24,440 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]
[2020-09-25 10:56:24,440 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:56:24,440 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:24,440 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:24,441 INFO  L82        PathProgramCache]: Analyzing trace with hash 942097100, now seen corresponding path program 1 times
[2020-09-25 10:56:24,441 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:24,441 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145480647]
[2020-09-25 10:56:24,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:24,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:24,573 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:24,679 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:24,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:29,531 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:29,532 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 10:56:29,532 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:29,532 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5024
[2020-09-25 10:56:29,533 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:29,533 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:29,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 10:56:29,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 10:56:29,534 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-25 10:56:29,534 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:29,854 WARN  L193               SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:29,856 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:29,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:29,933 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,189 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,189 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:30,190 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,190 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 294
[2020-09-25 10:56:30,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,191 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:30,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:30,192 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 10:56:30,192 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,257 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:30,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,261 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,264 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,264 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:30,264 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,265 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:30,265 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,265 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:30,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:30,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:30,266 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,267 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:30,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,269 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,271 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,272 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:30,272 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,272 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:30,272 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,272 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:30,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:30,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:30,273 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:30,275 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:30,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,278 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,283 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,283 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:30,283 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,284 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:30,284 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,284 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:30,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:30,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:30,285 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,287 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:30,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,289 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,291 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,291 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:30,292 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,292 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:30,292 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,292 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:30,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:30,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:30,293 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,305 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 10:56:30,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,308 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,315 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,315 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:56:30,316 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,316 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:56:30,316 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,316 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:30,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:30,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:56:30,317 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,320 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 10:56:30,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,326 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:30,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,326 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:30,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,327 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:30,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:30,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:30,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,329 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 10:56:30,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,333 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,333 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:30,334 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,334 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:30,334 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,334 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:30,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:30,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:30,335 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,337 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 10:56:30,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,340 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:30,340 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:30,341 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:30,341 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:30,341 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:30,341 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:30,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:30,342 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:30,342 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:30,342 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:30,375 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 10:56:30,376 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145480647]
[2020-09-25 10:56:30,377 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:30,377 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 10:56:30,377 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118306017]
[2020-09-25 10:56:30,380 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 10:56:30,380 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:30,381 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 10:56:30,381 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 10:56:30,381 INFO  L87              Difference]: Start difference. First operand 350 states and 398 transitions. Second operand 6 states.
[2020-09-25 10:56:30,881 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:31,612 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 10:56:33,916 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:33,916 INFO  L93              Difference]: Finished difference Result 1093 states and 1384 transitions.
[2020-09-25 10:56:33,917 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 10:56:33,917 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 159
[2020-09-25 10:56:33,918 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:33,926 INFO  L225             Difference]: With dead ends: 1093
[2020-09-25 10:56:33,926 INFO  L226             Difference]: Without dead ends: 853
[2020-09-25 10:56:33,933 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-25 10:56:33,934 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 853 states.
[2020-09-25 10:56:34,051 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 743.
[2020-09-25 10:56:34,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 743 states.
[2020-09-25 10:56:34,057 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 885 transitions.
[2020-09-25 10:56:34,058 INFO  L78                 Accepts]: Start accepts. Automaton has 743 states and 885 transitions. Word has length 159
[2020-09-25 10:56:34,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:34,058 INFO  L479      AbstractCegarLoop]: Abstraction has 743 states and 885 transitions.
[2020-09-25 10:56:34,059 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 10:56:34,059 INFO  L276                IsEmpty]: Start isEmpty. Operand 743 states and 885 transitions.
[2020-09-25 10:56:34,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 10:56:34,063 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:34,064 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 10:56:34,064 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:56:34,064 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:34,064 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:34,065 INFO  L82        PathProgramCache]: Analyzing trace with hash -721477650, now seen corresponding path program 1 times
[2020-09-25 10:56:34,065 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:34,065 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660177579]
[2020-09-25 10:56:34,065 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:34,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:56:34,132 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:56:34,133 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:56:34,138 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:56:34,164 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:34 BoogieIcfgContainer
[2020-09-25 10:56:34,164 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:56:34,166 INFO  L168              Benchmark]: Toolchain (without parser) took 24059.83 ms. Allocated memory was 139.5 MB in the beginning and 570.9 MB in the end (delta: 431.5 MB). Free memory was 102.0 MB in the beginning and 374.6 MB in the end (delta: -272.6 MB). Peak memory consumption was 158.9 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:34,167 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 10:56:34,168 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 713.31 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 172.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:34,169 INFO  L168              Benchmark]: Boogie Preprocessor took 97.26 ms. Allocated memory is still 202.9 MB. Free memory was 172.6 MB in the beginning and 168.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:34,170 INFO  L168              Benchmark]: RCFGBuilder took 1194.05 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 180.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:34,171 INFO  L168              Benchmark]: TraceAbstraction took 22046.03 ms. Allocated memory was 235.9 MB in the beginning and 570.9 MB in the end (delta: 335.0 MB). Free memory was 180.0 MB in the beginning and 374.6 MB in the end (delta: -194.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:34,175 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 713.31 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 172.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 97.26 ms. Allocated memory is still 202.9 MB. Free memory was 172.6 MB in the beginning and 168.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1194.05 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 180.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 22046.03 ms. Allocated memory was 235.9 MB in the beginning and 570.9 MB in the end (delta: 335.0 MB). Free memory was 180.0 MB in the beginning and 374.6 MB in the end (delta: -194.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L49]               int cleanupTimeShifts  =    4;
[L322]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L596]              int pumpRunning  =    0;
[L597]              int systemActive  =    1;
[L806]              int waterLevel  =    1;
[L807]              int methaneLevelCritical  =    0;
[L130]              int retValue_acc ;
[L131]              int tmp ;
[L135]  FCALL       select_helpers()
[L136]  FCALL       select_features()
[L137]  CALL, EXPR  valid_product()
[L796]              int retValue_acc ;
[L799]              retValue_acc = 1
[L800]              return (retValue_acc);
[L137]  RET, EXPR   valid_product()
[L137]              tmp = valid_product()
[L139]  COND TRUE   \read(tmp)
[L141]  FCALL       setup()
[L142]  CALL        runTest()
[L121]  CALL        test()
[L522]              int splverifierCounter ;
[L523]              int tmp ;
[L524]              int tmp___0 ;
[L525]              int tmp___1 ;
[L526]              int tmp___2 ;
[L529]              splverifierCounter = 0
[L531]  COND TRUE   1
[L533]  COND TRUE   splverifierCounter < 4
[L539]              tmp = __VERIFIER_nondet_int()
[L541]  COND TRUE   \read(tmp)
[L543]  CALL        waterRise()
[L824]  COND TRUE   waterLevel < 2
[L825]              waterLevel = waterLevel + 1
[L543]  RET         waterRise()
[L549]              tmp___0 = __VERIFIER_nondet_int()
[L551]  COND FALSE  !(\read(tmp___0))
[L559]              tmp___2 = __VERIFIER_nondet_int()
[L561]  COND TRUE   \read(tmp___2)
[L563]  CALL        startSystem()
[L765]              systemActive = 1
[L563]  RET         startSystem()
[L578]  CALL        timeShift()
[L604]  COND FALSE  !(\read(pumpRunning))
[L611]  COND TRUE   \read(systemActive)
[L613]  CALL        processEnvironment()
[L633]              int tmp ;
[L636]  COND FALSE  !(\read(pumpRunning))
[L651]  FCALL       processEnvironment__wrappee__methaneQuery()
[L613]  RET         processEnvironment()
[L619]  CALL        __utac_acc__Specification3_spec__1()
[L887]              int tmp ;
[L888]              int tmp___0 ;
[L889]              int tmp___1 ;
[L893]  CALL, EXPR  isMethaneLevelCritical()
[L845]              int retValue_acc ;
[L848]              retValue_acc = methaneLevelCritical
[L849]              return (retValue_acc);
[L893]  RET, EXPR   isMethaneLevelCritical()
[L893]              tmp = isMethaneLevelCritical()
[L895]  COND FALSE  !(\read(tmp))
[L899]  CALL, EXPR  getWaterLevel()
[L877]              int retValue_acc ;
[L880]              retValue_acc = waterLevel
[L881]              return (retValue_acc);
[L899]  RET, EXPR   getWaterLevel()
[L899]              tmp___0 = getWaterLevel()
[L901]  COND TRUE   tmp___0 == 2
[L903]  CALL, EXPR  isPumpRunning()
[L702]              int retValue_acc ;
[L705]              retValue_acc = pumpRunning
[L706]              return (retValue_acc);
[L903]  RET, EXPR   isPumpRunning()
[L903]              tmp___1 = isPumpRunning()
[L905]  COND FALSE  !(\read(tmp___1))
[L909]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 503 SDtfs, 963 SDslu, 919 SDs, 0 SdLazy, 1814 SolverSat, 363 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 157 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 133634 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...