/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=0.5 --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_product17.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:18:37,521 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:18:37,525 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:18:37,552 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:18:37,552 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:18:37,554 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:18:37,555 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:18:37,557 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:18:37,559 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:18:37,560 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:18:37,562 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:18:37,563 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:18:37,564 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:18:37,565 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:18:37,566 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:18:37,567 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:18:37,568 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:18:37,569 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:18:37,571 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:18:37,573 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:18:37,575 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:18:37,576 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:18:37,578 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:18:37,579 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:18:37,581 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:18:37,582 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:18:37,582 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:18:37,583 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:18:37,584 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:18:37,585 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:18:37,585 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:18:37,586 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:18:37,587 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:18:37,590 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:18:37,591 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:18:37,591 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:18:37,592 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:18:37,593 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:18:37,594 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:18:37,595 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:18:37,599 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:18:37,600 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 14:18:37,671 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:18:37,671 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:18:37,675 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:18:37,675 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:18:37,675 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:18:37,675 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:18:37,676 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:18:37,676 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:18:37,676 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:18:37,677 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:18:37,677 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:18:37,678 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:18:37,678 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:18:37,681 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:18:37,686 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:18:37,686 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:18:37,687 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:18:37,687 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:18:37,688 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:18:37,689 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:18:37,689 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:18:37,689 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:37,690 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:18:37,690 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:18:37,690 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:18:37,690 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:18:37,690 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:18:37,691 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:18:37,691 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:18:37,691 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true;
[2020-09-25 14:18:38,200 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:18:38,228 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:18:38,233 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:18:38,236 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:18:38,236 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:18:38,237 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c
[2020-09-25 14:18:38,333 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f601376d/3269c3c168da43d9a47b5f0807fa9321/FLAG87508f845
[2020-09-25 14:18:38,947 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:18:38,948 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c
[2020-09-25 14:18:38,963 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f601376d/3269c3c168da43d9a47b5f0807fa9321/FLAG87508f845
[2020-09-25 14:18:39,215 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f601376d/3269c3c168da43d9a47b5f0807fa9321
[2020-09-25 14:18:39,228 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:18:39,233 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:18:39,235 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:39,235 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:18:39,239 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:18:39,241 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,245 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb1716d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39, skipping insertion in model container
[2020-09-25 14:18:39,245 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,254 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:18:39,336 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:18:39,929 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:39,945 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:18:40,094 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:40,136 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:18:40,138 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40 WrapperNode
[2020-09-25 14:18:40,138 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:40,139 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:18:40,139 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:18:40,139 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:18:40,153 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,155 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,177 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,177 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,211 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,222 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,228 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,236 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:18:40,237 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:18:40,237 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:18:40,237 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:18:40,239 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (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 14:18:40,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:18:40,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:18:40,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:40,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:40,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:40,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:40,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:18:40,343 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:18:40,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:18:40,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:18:40,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:18:40,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:18:40,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:18:40,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:18:40,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:18:40,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 14:18:40,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:18:40,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:18:40,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:18:40,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:40,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:18:40,348 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:18:40,348 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:18:40,348 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:18:40,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:18:40,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:18:40,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 14:18:40,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:18:40,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:18:40,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:18:40,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:18:40,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:18:40,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:18:40,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:18:40,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:18:40,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:18:40,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:40,352 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:18:40,352 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:18:40,352 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:18:40,352 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:18:40,353 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:18:40,353 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:18:40,353 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:40,353 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:18:40,353 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:18:40,353 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:18:40,354 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:18:40,354 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:40,354 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:18:40,354 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:40,355 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:40,355 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:18:40,355 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:18:40,355 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:18:40,356 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:18:40,356 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:18:40,356 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:18:40,356 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:18:40,356 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:18:40,356 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:18:40,357 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:18:40,357 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:18:40,357 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 14:18:40,357 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:18:40,358 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:18:40,358 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:18:40,358 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:18:40,358 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:18:40,359 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:18:40,359 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:18:40,361 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:18:40,361 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:40,361 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:18:40,361 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:40,361 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 14:18:40,362 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:18:40,362 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:18:40,362 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:18:40,362 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:18:40,362 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:18:40,362 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:18:40,364 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:18:40,364 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:18:40,364 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:18:40,364 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:18:40,365 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:18:40,365 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:18:41,731 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:18:41,731 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:18:41,738 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:41 BoogieIcfgContainer
[2020-09-25 14:18:41,739 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:18:41,740 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:18:41,740 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:18:41,744 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:18:41,744 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:39" (1/3) ...
[2020-09-25 14:18:41,745 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bab14df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:41, skipping insertion in model container
[2020-09-25 14:18:41,746 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40" (2/3) ...
[2020-09-25 14:18:41,746 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bab14df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:41, skipping insertion in model container
[2020-09-25 14:18:41,746 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:41" (3/3) ...
[2020-09-25 14:18:41,749 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c
[2020-09-25 14:18:41,761 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:18:41,772 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:18:41,795 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:18:41,829 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:18:41,829 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:18:41,829 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:18:41,829 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:18:41,830 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:18:41,830 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:18:41,830 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:18:41,830 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:18:41,854 INFO  L276                IsEmpty]: Start isEmpty. Operand 292 states.
[2020-09-25 14:18:41,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:18:41,871 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:41,873 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 14:18:41,873 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:41,880 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:41,880 INFO  L82        PathProgramCache]: Analyzing trace with hash 1231247222, now seen corresponding path program 1 times
[2020-09-25 14:18:41,890 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:41,890 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099151807]
[2020-09-25 14:18:41,891 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:42,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:42,405 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:42,630 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:43,302 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:46,721 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:46,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:46,722 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:46,722 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4481
[2020-09-25 14:18:46,726 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:46,726 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:46,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:46,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 14:18:46,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-25 14:18:46,727 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 14:18:47,250 WARN  L193               SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:47,253 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:47,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,619 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,619 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:47,620 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,629 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 315
[2020-09-25 14:18:47,629 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,630 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 14:18:47,630 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,727 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:47,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,737 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,737 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:47,737 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,737 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:18:47,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,738 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:47,739 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,742 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:47,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,744 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,749 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,749 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:47,749 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,749 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:47,750 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,750 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,750 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,750 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,750 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:47,751 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,755 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:47,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,759 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,768 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,768 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,769 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,769 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 14:18:47,769 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,769 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:47,770 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,775 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:47,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,779 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,785 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,786 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:47,786 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,786 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:18:47,786 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,787 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:47,788 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,790 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:47,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,793 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,795 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,795 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,795 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,795 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:47,796 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,796 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:47,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:47,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:47,797 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,801 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:47,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,836 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,836 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,837 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,837 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 33
[2020-09-25 14:18:47,837 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,837 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:47,838 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:47,838 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:47,838 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,840 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:47,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,842 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,844 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,845 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,845 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,845 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:47,845 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,845 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,846 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:47,846 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:47,846 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:47,846 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,889 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 14:18:47,890 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099151807]
[2020-09-25 14:18:47,899 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:47,900 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:18:47,901 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690336399]
[2020-09-25 14:18:47,909 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:18:47,909 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:47,931 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:18:47,932 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:18:47,935 INFO  L87              Difference]: Start difference. First operand 292 states. Second operand 4 states.
[2020-09-25 14:18:48,542 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:49,529 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:49,529 INFO  L93              Difference]: Finished difference Result 435 states and 517 transitions.
[2020-09-25 14:18:49,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:49,532 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:18:49,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:49,553 INFO  L225             Difference]: With dead ends: 435
[2020-09-25 14:18:49,553 INFO  L226             Difference]: Without dead ends: 274
[2020-09-25 14:18:49,559 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:18:49,585 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2020-09-25 14:18:49,665 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235.
[2020-09-25 14:18:49,667 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 235 states.
[2020-09-25 14:18:49,669 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions.
[2020-09-25 14:18:49,672 INFO  L78                 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 153
[2020-09-25 14:18:49,673 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:49,673 INFO  L479      AbstractCegarLoop]: Abstraction has 235 states and 252 transitions.
[2020-09-25 14:18:49,673 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:18:49,673 INFO  L276                IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions.
[2020-09-25 14:18:49,683 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 14:18:49,684 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:49,684 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]
[2020-09-25 14:18:49,685 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:49,687 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:49,687 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:49,687 INFO  L82        PathProgramCache]: Analyzing trace with hash -23414697, now seen corresponding path program 1 times
[2020-09-25 14:18:49,688 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:49,688 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877558228]
[2020-09-25 14:18:49,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:49,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,841 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:50,059 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,062 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,062 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 14:18:53,063 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:53,063 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3310
[2020-09-25 14:18:53,063 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,063 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:53,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 14:18:53,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 105
[2020-09-25 14:18:53,064 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,460 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:53,462 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:53,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,531 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,735 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,735 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:53,736 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,736 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 239
[2020-09-25 14:18:53,736 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,736 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 14:18:53,737 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,780 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:53,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,782 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,785 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,785 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,785 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,785 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:53,786 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,786 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:53,787 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,788 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:53,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,793 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,793 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:53,794 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,794 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:53,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,796 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:53,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,799 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,806 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,806 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,807 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,807 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:53,807 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,807 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,807 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,808 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,808 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:53,808 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,810 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:53,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,812 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,815 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,815 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,815 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,815 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:53,816 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,816 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:53,817 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,833 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:53,835 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,837 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,839 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,839 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:18:53,839 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,840 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:53,840 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,840 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,840 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 14:18:53,841 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,843 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:18:53,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,845 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,846 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,846 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,846 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,847 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:53,847 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,847 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:53,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:53,848 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,849 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 14:18:53,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,852 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,855 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,855 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,855 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,855 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:53,856 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,856 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:53,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,858 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 14:18:53,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,862 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,868 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,868 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:18:53,869 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,869 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:53,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:53,870 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,903 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 14:18:53,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,906 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,907 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,907 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,908 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,908 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:53,908 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,908 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:53,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:53,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:53,909 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,946 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 14:18:53,946 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877558228]
[2020-09-25 14:18:53,947 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:53,947 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 14:18:53,947 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765133716]
[2020-09-25 14:18:53,949 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 14:18:53,949 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:53,950 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 14:18:53,950 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 14:18:53,950 INFO  L87              Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states.
[2020-09-25 14:18:54,467 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:56,557 WARN  L193               SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 14:18:57,181 WARN  L193               SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 14:18:57,568 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:57,920 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:18:58,287 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:58,743 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:18:59,082 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 14:18:59,456 WARN  L193               SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:00,737 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:19:00,738 INFO  L93              Difference]: Finished difference Result 587 states and 734 transitions.
[2020-09-25 14:19:00,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 14:19:00,739 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 14:19:00,740 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:19:00,745 INFO  L225             Difference]: With dead ends: 587
[2020-09-25 14:19:00,746 INFO  L226             Difference]: Without dead ends: 438
[2020-09-25 14:19:00,750 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 14:19:00,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-25 14:19:00,837 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 345.
[2020-09-25 14:19:00,838 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 345 states.
[2020-09-25 14:19:00,840 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 380 transitions.
[2020-09-25 14:19:00,840 INFO  L78                 Accepts]: Start accepts. Automaton has 345 states and 380 transitions. Word has length 162
[2020-09-25 14:19:00,841 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:19:00,841 INFO  L479      AbstractCegarLoop]: Abstraction has 345 states and 380 transitions.
[2020-09-25 14:19:00,841 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 14:19:00,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 345 states and 380 transitions.
[2020-09-25 14:19:00,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 14:19:00,845 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:00,845 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]
[2020-09-25 14:19:00,845 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:19:00,846 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:00,846 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:00,846 INFO  L82        PathProgramCache]: Analyzing trace with hash 558510229, now seen corresponding path program 1 times
[2020-09-25 14:19:00,846 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:00,847 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760686925]
[2020-09-25 14:19:00,847 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:00,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:19:00,926 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:19:00,927 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:19:00,932 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:19:00,958 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:00 BoogieIcfgContainer
[2020-09-25 14:19:00,959 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:19:00,961 INFO  L168              Benchmark]: Toolchain (without parser) took 21731.27 ms. Allocated memory was 143.1 MB in the beginning and 488.1 MB in the end (delta: 345.0 MB). Free memory was 104.8 MB in the beginning and 218.7 MB in the end (delta: -113.9 MB). Peak memory consumption was 231.1 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,962 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,963 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 904.01 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 104.1 MB in the beginning and 174.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,964 INFO  L168              Benchmark]: Boogie Preprocessor took 97.03 ms. Allocated memory is still 204.5 MB. Free memory was 174.8 MB in the beginning and 170.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,965 INFO  L168              Benchmark]: RCFGBuilder took 1502.19 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 170.5 MB in the beginning and 170.5 MB in the end (delta: 1.0 kB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,966 INFO  L168              Benchmark]: TraceAbstraction took 19218.64 ms. Allocated memory was 232.3 MB in the beginning and 488.1 MB in the end (delta: 255.9 MB). Free memory was 169.2 MB in the beginning and 218.7 MB in the end (delta: -49.6 MB). Peak memory consumption was 206.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,970 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 904.01 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 104.1 MB in the beginning and 174.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 97.03 ms. Allocated memory is still 204.5 MB. Free memory was 174.8 MB in the beginning and 170.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1502.19 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 170.5 MB in the beginning and 170.5 MB in the end (delta: 1.0 kB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19218.64 ms. Allocated memory was 232.3 MB in the beginning and 488.1 MB in the end (delta: 255.9 MB). Free memory was 169.2 MB in the beginning and 218.7 MB in the end (delta: -49.6 MB). Peak memory consumption was 206.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L413]              int waterLevel  =    1;
[L414]              int methaneLevelCritical  =    0;
[L582]              int pumpRunning  =    0;
[L583]              int systemActive  =    1;
[L735]              int cleanupTimeShifts  =    4;
[L811]              int retValue_acc ;
[L812]              int tmp ;
[L816]  FCALL       select_helpers()
[L817]  FCALL       select_features()
[L818]  CALL, EXPR  valid_product()
[L860]              int retValue_acc ;
[L863]              retValue_acc = 1
[L864]              return (retValue_acc);
[L818]  RET, EXPR   valid_product()
[L818]              tmp = valid_product()
[L820]  COND TRUE   \read(tmp)
[L822]  FCALL       setup()
[L823]  CALL        runTest()
[L802]  CALL        test()
[L514]              int splverifierCounter ;
[L515]              int tmp ;
[L516]              int tmp___0 ;
[L517]              int tmp___1 ;
[L518]              int tmp___2 ;
[L521]              splverifierCounter = 0
[L523]  COND TRUE   1
[L525]  COND TRUE   splverifierCounter < 4
[L531]              tmp = __VERIFIER_nondet_int()
[L533]  COND TRUE   \read(tmp)
[L535]  CALL        waterRise()
[L431]  COND TRUE   waterLevel < 2
[L432]              waterLevel = waterLevel + 1
[L535]  RET         waterRise()
[L541]              tmp___0 = __VERIFIER_nondet_int()
[L543]  COND FALSE  !(\read(tmp___0))
[L551]              tmp___2 = __VERIFIER_nondet_int()
[L553]  COND TRUE   \read(tmp___2)
[L566]  CALL        timeShift()
[L590]  COND FALSE  !(\read(pumpRunning))
[L597]  COND TRUE   \read(systemActive)
[L599]  CALL        processEnvironment()
[L619]              int tmp ;
[L622]  COND FALSE  !(\read(pumpRunning))
[L637]  FCALL       processEnvironment__wrappee__base()
[L599]  RET         processEnvironment()
[L605]  CALL        __utac_acc__Specification3_spec__1()
[L870]              int tmp ;
[L871]              int tmp___0 ;
[L872]              int tmp___1 ;
[L876]  CALL, EXPR  isMethaneLevelCritical()
[L452]              int retValue_acc ;
[L455]              retValue_acc = methaneLevelCritical
[L456]              return (retValue_acc);
[L876]  RET, EXPR   isMethaneLevelCritical()
[L876]              tmp = isMethaneLevelCritical()
[L878]  COND FALSE  !(\read(tmp))
[L882]  CALL, EXPR  getWaterLevel()
[L484]              int retValue_acc ;
[L487]              retValue_acc = waterLevel
[L488]              return (retValue_acc);
[L882]  RET, EXPR   getWaterLevel()
[L882]              tmp___0 = getWaterLevel()
[L884]  COND TRUE   tmp___0 == 2
[L886]  CALL, EXPR  isPumpRunning()
[L671]              int retValue_acc ;
[L674]              retValue_acc = pumpRunning
[L675]              return (retValue_acc);
[L886]  RET, EXPR   isPumpRunning()
[L886]              tmp___1 = isPumpRunning()
[L888]  COND FALSE  !(\read(tmp___1))
[L892]  CALL        __automaton_fail()
[L506]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 455 SDtfs, 818 SDslu, 748 SDs, 0 SdLazy, 1568 SolverSat, 257 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred 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, 132 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140397 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...