/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_product18.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:56:18,004 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:56:18,008 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:56:18,034 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:56:18,035 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:56:18,036 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:56:18,038 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:56:18,040 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:56:18,041 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:56:18,043 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:56:18,044 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:56:18,045 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:56:18,045 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:56:18,047 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:56:18,048 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:56:18,049 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:56:18,050 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:56:18,051 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:56:18,053 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:56:18,055 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:56:18,057 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:56:18,058 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:56:18,059 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:56:18,060 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:56:18,063 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:56:18,063 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:56:18,063 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:56:18,064 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:56:18,065 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:56:18,066 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:56:18,066 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:56:18,067 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:56:18,068 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:56:18,069 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:56:18,070 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:56:18,070 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:56:18,071 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:56:18,071 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:56:18,071 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:56:18,073 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:56:18,073 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:56:18,074 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 10:56:18,101 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:56:18,101 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:56:18,103 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:56:18,103 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:56:18,103 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:56:18,103 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:56:18,104 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:56:18,104 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:56:18,104 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:56:18,104 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:56:18,104 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:56:18,105 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:56:18,105 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:56:18,105 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:56:18,105 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:56:18,105 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:56:18,106 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:56:18,106 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:56:18,106 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:56:18,106 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:56:18,106 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:56:18,107 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:56:18,107 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:56:18,107 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:56:18,107 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:56:18,107 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:56:18,108 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:56:18,108 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:56:18,108 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:56:18,108 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 10:56:18,599 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:56:18,619 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:56:18,624 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:56:18,626 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:56:18,626 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:56:18,628 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-25 10:56:18,712 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3bc8c0f98/447833a3388d4ae4b155337d2c03af2c/FLAGa64df0f4d
[2020-09-25 10:56:19,347 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:56:19,348 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-25 10:56:19,364 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3bc8c0f98/447833a3388d4ae4b155337d2c03af2c/FLAGa64df0f4d
[2020-09-25 10:56:19,606 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3bc8c0f98/447833a3388d4ae4b155337d2c03af2c
[2020-09-25 10:56:19,622 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:56:19,629 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:56:19,630 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:19,631 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:56:19,635 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:56:19,637 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:19" (1/1) ...
[2020-09-25 10:56:19,642 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157daaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:19, skipping insertion in model container
[2020-09-25 10:56:19,642 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:19" (1/1) ...
[2020-09-25 10:56:19,652 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:56:19,728 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:56:20,095 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:20,217 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:56:20,305 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:20,339 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:56:20,340 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20 WrapperNode
[2020-09-25 10:56:20,340 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:20,341 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:56:20,341 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:56:20,341 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:56:20,355 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (1/1) ...
[2020-09-25 10:56:20,356 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (1/1) ...
[2020-09-25 10:56:20,381 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (1/1) ...
[2020-09-25 10:56:20,382 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (1/1) ...
[2020-09-25 10:56:20,440 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (1/1) ...
[2020-09-25 10:56:20,456 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (1/1) ...
[2020-09-25 10:56:20,461 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (1/1) ...
[2020-09-25 10:56:20,483 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:56:20,486 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:56:20,487 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:56:20,487 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:56:20,492 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (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 10:56:20,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:56:20,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:56:20,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:20,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:56:20,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:56:20,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:56:20,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:56:20,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:56:20,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:56:20,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:56:20,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:56:20,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:56:20,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:56:20,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:56:20,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:56:20,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:20,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:20,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:20,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:56:20,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:56:20,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:56:20,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:56:20,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:20,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:56:20,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:56:20,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:56:20,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:56:20,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:56:20,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:56:20,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:56:20,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 10:56:20,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:56:20,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:56:20,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:56:20,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:56:20,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:56:20,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:20,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:56:20,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:56:20,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:56:20,614 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:56:20,614 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:56:20,614 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:56:20,615 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:56:20,615 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:56:20,615 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:56:20,615 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:56:20,615 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:56:20,615 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:56:20,616 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:56:20,616 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:56:20,616 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:56:20,616 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:56:20,616 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:56:20,616 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:56:20,617 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:56:20,617 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:56:20,617 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:56:20,617 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:56:20,617 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:56:20,617 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:56:20,618 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:56:20,618 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:56:20,618 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:20,618 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:56:20,618 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:56:20,618 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:56:20,618 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:56:20,619 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:20,619 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:56:20,619 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:20,619 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:20,619 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:56:20,619 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:56:20,620 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:56:20,620 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:56:20,620 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:56:20,620 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:56:20,620 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:56:20,620 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 10:56:20,620 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:20,621 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:56:20,621 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:20,621 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:56:20,621 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:56:20,621 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:56:20,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:56:20,622 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:56:20,622 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:56:20,622 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:56:21,851 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:56:21,852 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:56:21,859 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:21 BoogieIcfgContainer
[2020-09-25 10:56:21,860 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:56:21,861 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:56:21,861 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:56:21,865 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:56:21,865 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:19" (1/3) ...
[2020-09-25 10:56:21,866 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc6d462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:21, skipping insertion in model container
[2020-09-25 10:56:21,867 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:20" (2/3) ...
[2020-09-25 10:56:21,867 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc6d462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:21, skipping insertion in model container
[2020-09-25 10:56:21,867 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:21" (3/3) ...
[2020-09-25 10:56:21,870 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c
[2020-09-25 10:56:21,882 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:56:21,894 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:56:21,917 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:56:21,946 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:56:21,947 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:56:21,947 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:56:21,947 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:56:21,947 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:56:21,947 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:56:21,947 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:56:21,948 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:56:21,975 INFO  L276                IsEmpty]: Start isEmpty. Operand 296 states.
[2020-09-25 10:56:21,993 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:56:21,994 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:21,995 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 10:56:21,996 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:22,002 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:22,003 INFO  L82        PathProgramCache]: Analyzing trace with hash -255597227, now seen corresponding path program 1 times
[2020-09-25 10:56:22,013 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:22,013 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990717010]
[2020-09-25 10:56:22,014 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:22,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:22,480 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:22,752 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:24,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:27,402 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:27,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:56:27,403 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:27,403 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5037
[2020-09-25 10:56:27,407 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:27,407 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:27,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:56:27,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 10:56:27,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-25 10:56:27,408 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 10:56:27,954 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:27,959 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:28,026 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,079 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,318 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,327 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:28,328 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,328 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 290
[2020-09-25 10:56:28,329 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,329 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:28,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:28,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 10:56:28,330 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:28,417 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:28,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,420 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,427 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,427 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:28,428 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,428 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:56:28,428 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,428 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,428 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:28,429 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:28,429 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:28,429 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:28,435 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:28,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,437 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,441 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,442 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:28,442 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,442 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:28,442 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,442 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:28,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:28,443 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:28,443 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:28,448 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:28,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,462 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,462 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:28,462 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,463 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:56:28,463 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,463 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:28,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:28,464 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:28,464 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:28,467 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:28,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,471 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,474 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,475 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:28,475 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,475 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:28,475 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,476 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:28,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:28,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:28,477 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:28,480 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:56:28,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,484 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,488 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,488 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:28,489 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,489 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:28,489 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,489 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:28,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:28,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:28,490 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:28,492 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:56:28,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,496 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,510 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,511 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:28,511 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,511 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 10:56:28,511 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,512 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:56:28,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:28,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:28,512 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:28,541 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:56:28,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:28,546 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:28,548 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:28,548 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:28,549 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:28,549 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:28,549 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:28,549 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:28,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:28,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:28,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:28,550 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:28,620 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 10:56:28,621 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990717010]
[2020-09-25 10:56:28,623 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:28,624 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:56:28,625 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350555135]
[2020-09-25 10:56:28,636 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:56:28,637 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:28,654 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:56:28,657 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:56:28,660 INFO  L87              Difference]: Start difference. First operand 296 states. Second operand 8 states.
[2020-09-25 10:56:29,254 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:30,855 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:31,188 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:31,593 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:31,997 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:32,361 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:33,093 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:33,416 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:34,457 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:34,458 INFO  L93              Difference]: Finished difference Result 586 states and 723 transitions.
[2020-09-25 10:56:34,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:56:34,462 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:56:34,463 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:34,483 INFO  L225             Difference]: With dead ends: 586
[2020-09-25 10:56:34,483 INFO  L226             Difference]: Without dead ends: 390
[2020-09-25 10:56:34,490 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:56:34,508 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 390 states.
[2020-09-25 10:56:34,610 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 346.
[2020-09-25 10:56:34,612 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 346 states.
[2020-09-25 10:56:34,614 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 380 transitions.
[2020-09-25 10:56:34,617 INFO  L78                 Accepts]: Start accepts. Automaton has 346 states and 380 transitions. Word has length 153
[2020-09-25 10:56:34,618 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:34,618 INFO  L479      AbstractCegarLoop]: Abstraction has 346 states and 380 transitions.
[2020-09-25 10:56:34,618 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:56:34,618 INFO  L276                IsEmpty]: Start isEmpty. Operand 346 states and 380 transitions.
[2020-09-25 10:56:34,625 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 10:56:34,625 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:34,625 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 10:56:34,626 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:56:34,626 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:34,626 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:34,626 INFO  L82        PathProgramCache]: Analyzing trace with hash 137039825, now seen corresponding path program 1 times
[2020-09-25 10:56:34,627 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:34,627 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906611517]
[2020-09-25 10:56:34,627 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:34,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:34,741 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,049 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,049 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 10:56:35,049 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,050 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 362
[2020-09-25 10:56:35,050 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,050 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 10:56:35,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 10:56:35,051 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,325 WARN  L193               SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:35,326 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:35,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:35,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 110
[2020-09-25 10:56:35,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,447 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,448 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,490 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:35,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,492 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,495 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,495 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:35,495 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,496 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:35,496 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,496 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,497 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,499 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:35,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,501 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,503 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,503 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:35,503 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,504 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:35,504 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,504 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,506 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,507 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:35,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,509 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,514 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,514 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,515 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,515 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:35,515 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,516 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,516 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,518 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 10:56:35,520 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:35,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,524 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,525 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:35,525 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,525 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:35,526 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,526 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,527 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,636 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 10:56:35,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,639 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,643 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,643 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:56:35,644 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,644 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:35,644 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,645 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,646 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,654 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 10:56:35,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,660 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,661 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 10:56:35,661 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,661 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:35,662 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,662 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 10:56:35,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,666 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 10:56:35,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,669 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,671 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,671 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,671 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,672 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:35,672 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,672 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:35,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,673 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,674 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 10:56:35,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,677 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,678 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,679 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,679 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,679 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:35,679 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,680 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:35,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,680 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,682 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 10:56:35,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,684 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,685 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,686 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,686 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,686 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:35,686 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,687 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:35,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,687 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,725 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 10:56:35,726 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906611517]
[2020-09-25 10:56:35,726 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:35,727 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 10:56:35,727 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949320010]
[2020-09-25 10:56:35,729 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 10:56:35,730 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:35,730 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 10:56:35,730 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 10:56:35,730 INFO  L87              Difference]: Start difference. First operand 346 states and 380 transitions. Second operand 6 states.
[2020-09-25 10:56:36,279 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:37,764 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:37,764 INFO  L93              Difference]: Finished difference Result 725 states and 881 transitions.
[2020-09-25 10:56:37,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 10:56:37,765 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 10:56:37,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:37,777 INFO  L225             Difference]: With dead ends: 725
[2020-09-25 10:56:37,777 INFO  L226             Difference]: Without dead ends: 489
[2020-09-25 10:56:37,780 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 10:56:37,782 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 489 states.
[2020-09-25 10:56:37,851 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 351.
[2020-09-25 10:56:37,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 351 states.
[2020-09-25 10:56:37,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 385 transitions.
[2020-09-25 10:56:37,855 INFO  L78                 Accepts]: Start accepts. Automaton has 351 states and 385 transitions. Word has length 172
[2020-09-25 10:56:37,855 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:37,856 INFO  L479      AbstractCegarLoop]: Abstraction has 351 states and 385 transitions.
[2020-09-25 10:56:37,856 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 10:56:37,856 INFO  L276                IsEmpty]: Start isEmpty. Operand 351 states and 385 transitions.
[2020-09-25 10:56:37,860 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 10:56:37,860 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:37,860 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 10:56:37,861 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:56:37,861 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:37,861 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:37,861 INFO  L82        PathProgramCache]: Analyzing trace with hash 1778118102, now seen corresponding path program 1 times
[2020-09-25 10:56:37,861 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:37,862 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220981942]
[2020-09-25 10:56:37,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:37,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:56:37,937 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:56:37,937 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:56:37,942 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:56:37,971 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:37 BoogieIcfgContainer
[2020-09-25 10:56:37,971 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:56:37,973 INFO  L168              Benchmark]: Toolchain (without parser) took 18348.97 ms. Allocated memory was 146.3 MB in the beginning and 469.8 MB in the end (delta: 323.5 MB). Free memory was 101.6 MB in the beginning and 269.2 MB in the end (delta: -167.6 MB). Peak memory consumption was 155.9 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:37,974 INFO  L168              Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 146.3 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 10:56:37,975 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 710.07 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 172.5 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:37,976 INFO  L168              Benchmark]: Boogie Preprocessor took 145.29 ms. Allocated memory is still 202.9 MB. Free memory was 172.5 MB in the beginning and 168.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:37,977 INFO  L168              Benchmark]: RCFGBuilder took 1373.55 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 180.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:37,978 INFO  L168              Benchmark]: TraceAbstraction took 16109.92 ms. Allocated memory was 235.9 MB in the beginning and 469.8 MB in the end (delta: 233.8 MB). Free memory was 178.7 MB in the beginning and 269.2 MB in the end (delta: -90.5 MB). Peak memory consumption was 143.4 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:37,982 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.37 ms. Allocated memory is still 146.3 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 710.07 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 172.5 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 145.29 ms. Allocated memory is still 202.9 MB. Free memory was 172.5 MB in the beginning and 168.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1373.55 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 180.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 16109.92 ms. Allocated memory was 235.9 MB in the beginning and 469.8 MB in the end (delta: 233.8 MB). Free memory was 178.7 MB in the beginning and 269.2 MB in the end (delta: -90.5 MB). Peak memory consumption was 143.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L149]              int waterLevel  =    1;
[L150]              int methaneLevelCritical  =    0;
[L407]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L608]              int pumpRunning  =    0;
[L609]              int systemActive  =    1;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L862]              int retValue_acc ;
[L865]              retValue_acc = 1
[L866]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L770]              int splverifierCounter ;
[L771]              int tmp ;
[L772]              int tmp___0 ;
[L773]              int tmp___1 ;
[L774]              int tmp___2 ;
[L777]              splverifierCounter = 0
[L779]  COND TRUE   1
[L781]  COND TRUE   splverifierCounter < 4
[L787]              tmp = __VERIFIER_nondet_int()
[L789]  COND TRUE   \read(tmp)
[L791]  CALL        waterRise()
[L167]  COND TRUE   waterLevel < 2
[L168]              waterLevel = waterLevel + 1
[L791]  RET         waterRise()
[L797]              tmp___0 = __VERIFIER_nondet_int()
[L799]  COND FALSE  !(\read(tmp___0))
[L807]              tmp___2 = __VERIFIER_nondet_int()
[L809]  COND TRUE   \read(tmp___2)
[L811]  CALL        startSystem()
[L764]              systemActive = 1
[L811]  RET         startSystem()
[L824]  CALL        timeShift()
[L616]  COND FALSE  !(\read(pumpRunning))
[L623]  COND TRUE   \read(systemActive)
[L625]  CALL        processEnvironment()
[L645]              int tmp ;
[L648]  COND FALSE  !(\read(pumpRunning))
[L663]  FCALL       processEnvironment__wrappee__base()
[L625]  RET         processEnvironment()
[L631]  CALL        __utac_acc__Specification3_spec__1()
[L873]              int tmp ;
[L874]              int tmp___0 ;
[L875]              int tmp___1 ;
[L879]  CALL, EXPR  isMethaneLevelCritical()
[L188]              int retValue_acc ;
[L191]              retValue_acc = methaneLevelCritical
[L192]              return (retValue_acc);
[L879]  RET, EXPR   isMethaneLevelCritical()
[L879]              tmp = isMethaneLevelCritical()
[L881]  COND FALSE  !(\read(tmp))
[L885]  CALL, EXPR  getWaterLevel()
[L220]              int retValue_acc ;
[L223]              retValue_acc = waterLevel
[L224]              return (retValue_acc);
[L885]  RET, EXPR   getWaterLevel()
[L885]              tmp___0 = getWaterLevel()
[L887]  COND TRUE   tmp___0 == 2
[L889]  CALL, EXPR  isPumpRunning()
[L697]              int retValue_acc ;
[L700]              retValue_acc = pumpRunning
[L701]              return (retValue_acc);
[L889]  RET, EXPR   isPumpRunning()
[L889]              tmp___1 = isPumpRunning()
[L891]  COND FALSE  !(\read(tmp___1))
[L895]  CALL        __automaton_fail()
[L910]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 613 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 465 SDtfs, 941 SDslu, 698 SDs, 0 SdLazy, 1471 SolverSat, 316 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s 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=351occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 182 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128744 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...