/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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-15 01:42:07,399 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-15 01:42:07,402 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-15 01:42:07,441 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-15 01:42:07,441 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-15 01:42:07,449 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-15 01:42:07,451 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-15 01:42:07,455 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-15 01:42:07,457 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-15 01:42:07,461 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-15 01:42:07,462 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-15 01:42:07,463 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-15 01:42:07,463 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-15 01:42:07,465 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-15 01:42:07,468 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-15 01:42:07,470 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-15 01:42:07,471 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-15 01:42:07,472 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-15 01:42:07,473 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-15 01:42:07,481 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-15 01:42:07,483 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-15 01:42:07,484 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-15 01:42:07,485 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-15 01:42:07,486 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-15 01:42:07,498 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-15 01:42:07,498 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-15 01:42:07,498 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-15 01:42:07,500 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-15 01:42:07,500 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-15 01:42:07,501 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-15 01:42:07,502 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-15 01:42:07,502 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-15 01:42:07,503 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-15 01:42:07,507 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-15 01:42:07,508 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-15 01:42:07,508 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-15 01:42:07,509 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-15 01:42:07,509 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-15 01:42:07,509 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-15 01:42:07,511 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-15 01:42:07,512 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-15 01:42:07,513 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
[2020-10-15 01:42:07,552 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-15 01:42:07,552 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-15 01:42:07,554 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-15 01:42:07,554 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-15 01:42:07,554 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-15 01:42:07,555 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-15 01:42:07,555 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-15 01:42:07,555 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-15 01:42:07,555 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-15 01:42:07,555 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-15 01:42:07,556 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-15 01:42:07,557 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-15 01:42:07,557 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-15 01:42:07,557 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-15 01:42:07,557 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-15 01:42:07,558 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-15 01:42:07,558 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-15 01:42:07,558 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-15 01:42:07,558 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-15 01:42:07,558 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-15 01:42:07,559 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-15 01:42:07,559 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-15 01:42:07,559 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-15 01:42:07,559 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-15 01:42:07,560 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-15 01:42:07,560 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-15 01:42:07,560 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-15 01:42:07,560 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-15 01:42:07,560 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-15 01:42:07,560 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 -> SequenceOfStatements
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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=true;
[2020-10-15 01:42:07,902 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-15 01:42:07,912 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-15 01:42:07,919 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-15 01:42:07,924 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-15 01:42:07,924 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-15 01:42:07,925 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-10-15 01:42:07,993 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aee1b27a/ef7eb9a3f56940debe8f42357025204b/FLAG62bdcc6a2
[2020-10-15 01:42:08,548 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-15 01:42:08,549 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-10-15 01:42:08,562 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aee1b27a/ef7eb9a3f56940debe8f42357025204b/FLAG62bdcc6a2
[2020-10-15 01:42:08,775 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aee1b27a/ef7eb9a3f56940debe8f42357025204b
[2020-10-15 01:42:08,783 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-15 01:42:08,784 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-15 01:42:08,785 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-15 01:42:08,785 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-15 01:42:08,789 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-15 01:42:08,790 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:08" (1/1) ...
[2020-10-15 01:42:08,793 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf7d031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:08, skipping insertion in model container
[2020-10-15 01:42:08,793 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:08" (1/1) ...
[2020-10-15 01:42:08,800 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-15 01:42:08,859 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-15 01:42:09,224 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:42:09,248 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-15 01:42:09,333 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:42:09,367 INFO  L208         MainTranslator]: Completed translation
[2020-10-15 01:42:09,368 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09 WrapperNode
[2020-10-15 01:42:09,368 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-15 01:42:09,369 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-15 01:42:09,369 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-15 01:42:09,369 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-15 01:42:09,383 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ...
[2020-10-15 01:42:09,384 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ...
[2020-10-15 01:42:09,402 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ...
[2020-10-15 01:42:09,403 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ...
[2020-10-15 01:42:09,439 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ...
[2020-10-15 01:42:09,449 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ...
[2020-10-15 01:42:09,455 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ...
[2020-10-15 01:42:09,463 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-15 01:42:09,464 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-15 01:42:09,464 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-15 01:42:09,464 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-15 01:42:09,465 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (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
[2020-10-15 01:42:09,533 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-15 01:42:09,533 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-15 01:42:09,533 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:42:09,534 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-15 01:42:09,534 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-15 01:42:09,534 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-15 01:42:09,534 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-15 01:42:09,534 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-15 01:42:09,534 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-15 01:42:09,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-15 01:42:09,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-15 01:42:09,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-15 01:42:09,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-15 01:42:09,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-15 01:42:09,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-15 01:42:09,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-15 01:42:09,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-15 01:42:09,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-15 01:42:09,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-15 01:42:09,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-15 01:42:09,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-15 01:42:09,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-15 01:42:09,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-15 01:42:09,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-15 01:42:09,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-15 01:42:09,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-15 01:42:09,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-15 01:42:09,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-15 01:42:09,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-15 01:42:09,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-15 01:42:09,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-15 01:42:09,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:42:09,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-15 01:42:09,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-15 01:42:09,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-15 01:42:09,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:42:09,539 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-15 01:42:09,539 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-15 01:42:09,539 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-15 01:42:09,539 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-15 01:42:09,539 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-15 01:42:09,540 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-15 01:42:09,540 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-15 01:42:09,540 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-15 01:42:09,540 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-15 01:42:09,540 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-15 01:42:09,540 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-15 01:42:09,541 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-15 01:42:09,541 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-15 01:42:09,541 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-15 01:42:09,541 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-15 01:42:09,541 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-15 01:42:09,541 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-15 01:42:09,542 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:42:09,542 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-15 01:42:09,542 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-15 01:42:09,542 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-15 01:42:09,542 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-15 01:42:09,542 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-15 01:42:09,542 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-15 01:42:09,543 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-15 01:42:09,543 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-15 01:42:09,543 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-15 01:42:09,543 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-15 01:42:09,543 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-15 01:42:09,543 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-15 01:42:09,544 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-15 01:42:09,544 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-15 01:42:09,544 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-15 01:42:09,544 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-15 01:42:09,544 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-15 01:42:09,544 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-15 01:42:09,544 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-15 01:42:09,545 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-15 01:42:09,545 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-15 01:42:09,545 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-15 01:42:09,545 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-15 01:42:09,545 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:42:09,545 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:42:09,546 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-15 01:42:09,546 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-15 01:42:09,546 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-15 01:42:09,546 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-15 01:42:09,546 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-15 01:42:09,546 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-15 01:42:09,546 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-15 01:42:10,594 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-15 01:42:10,594 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-15 01:42:10,599 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:10 BoogieIcfgContainer
[2020-10-15 01:42:10,600 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-15 01:42:10,601 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-15 01:42:10,601 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-15 01:42:10,605 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-15 01:42:10,605 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:42:08" (1/3) ...
[2020-10-15 01:42:10,606 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7dd36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:10, skipping insertion in model container
[2020-10-15 01:42:10,606 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (2/3) ...
[2020-10-15 01:42:10,606 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7dd36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:10, skipping insertion in model container
[2020-10-15 01:42:10,607 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:10" (3/3) ...
[2020-10-15 01:42:10,608 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c
[2020-10-15 01:42:10,619 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-15 01:42:10,627 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-15 01:42:10,641 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-15 01:42:10,667 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-15 01:42:10,667 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-15 01:42:10,667 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-15 01:42:10,667 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-15 01:42:10,668 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-15 01:42:10,668 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-15 01:42:10,668 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-15 01:42:10,668 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-15 01:42:10,690 INFO  L276                IsEmpty]: Start isEmpty. Operand 152 states.
[2020-10-15 01:42:10,700 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-15 01:42:10,700 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:10,701 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]
[2020-10-15 01:42:10,702 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:10,706 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:10,707 INFO  L82        PathProgramCache]: Analyzing trace with hash 1057158692, now seen corresponding path program 1 times
[2020-10-15 01:42:10,713 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:10,714 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974264874]
[2020-10-15 01:42:10,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:10,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:11,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:11,228 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:12,091 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:13,581 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:13,583 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-15 01:42:13,587 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-15 01:42:13,588 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2580
[2020-10-15 01:42:13,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:13,592 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:13,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-15 01:42:13,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:13,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-15 01:42:13,593 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-10-15 01:42:14,065 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:42:14,067 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:42:14,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,110 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,177 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,177 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:14,177 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,178 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 79
[2020-10-15 01:42:14,178 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,186 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:14,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:14,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:42:14,188 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-10-15 01:42:14,233 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:42:14,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,238 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,239 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:14,239 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,239 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:14,239 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,240 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:14,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:14,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:14,240 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:14,242 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:42:14,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,244 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,247 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,247 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:14,248 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,248 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:14,248 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,248 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:14,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:14,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:14,249 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:14,251 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:42:14,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,258 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,259 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:14,259 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,259 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-15 01:42:14,259 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,260 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:14,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:14,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:14,261 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:14,263 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:42:14,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,266 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:14,269 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,269 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:14,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,270 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:14,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:14,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:14,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:14,274 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-15 01:42:14,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,281 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,285 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,285 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:14,285 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,285 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-15 01:42:14,286 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,286 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:14,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:14,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:14,287 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:14,294 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-15 01:42:14,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,297 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,303 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,303 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:14,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,304 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-15 01:42:14,304 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,304 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-15 01:42:14,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:14,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:14,305 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:14,320 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-15 01:42:14,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:14,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:14,323 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:14,324 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:14,324 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:14,324 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:14,324 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:14,325 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:14,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:14,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:14,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:14,326 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:14,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-15 01:42:14,344 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974264874]
[2020-10-15 01:42:14,346 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:42:14,346 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-15 01:42:14,347 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069937371]
[2020-10-15 01:42:14,353 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-15 01:42:14,353 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:42:14,367 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-15 01:42:14,370 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-15 01:42:14,373 INFO  L87              Difference]: Start difference. First operand 152 states. Second operand 8 states.
[2020-10-15 01:42:14,971 WARN  L193               SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:15,829 WARN  L193               SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-10-15 01:42:16,415 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:42:16,819 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-15 01:42:17,149 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-15 01:42:17,412 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-10-15 01:42:17,752 WARN  L193               SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-10-15 01:42:18,074 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-10-15 01:42:18,393 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:18,779 WARN  L193               SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-15 01:42:20,328 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:42:20,328 INFO  L93              Difference]: Finished difference Result 462 states and 655 transitions.
[2020-10-15 01:42:20,333 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-10-15 01:42:20,335 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 52
[2020-10-15 01:42:20,335 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:42:20,352 INFO  L225             Difference]: With dead ends: 462
[2020-10-15 01:42:20,352 INFO  L226             Difference]: Without dead ends: 318
[2020-10-15 01:42:20,358 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306
[2020-10-15 01:42:20,377 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2020-10-15 01:42:20,520 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 273.
[2020-10-15 01:42:20,522 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 273 states.
[2020-10-15 01:42:20,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 348 transitions.
[2020-10-15 01:42:20,527 INFO  L78                 Accepts]: Start accepts. Automaton has 273 states and 348 transitions. Word has length 52
[2020-10-15 01:42:20,527 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:42:20,528 INFO  L479      AbstractCegarLoop]: Abstraction has 273 states and 348 transitions.
[2020-10-15 01:42:20,528 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-15 01:42:20,528 INFO  L276                IsEmpty]: Start isEmpty. Operand 273 states and 348 transitions.
[2020-10-15 01:42:20,535 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-15 01:42:20,535 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:20,535 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]
[2020-10-15 01:42:20,535 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-15 01:42:20,536 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:20,536 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:20,536 INFO  L82        PathProgramCache]: Analyzing trace with hash -2092101761, now seen corresponding path program 1 times
[2020-10-15 01:42:20,536 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:20,537 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313934146]
[2020-10-15 01:42:20,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:20,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:20,589 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,263 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,263 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 94
[2020-10-15 01:42:21,263 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,264 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 694
[2020-10-15 01:42:21,264 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,265 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-15 01:42:21,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:21,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-10-15 01:42:21,266 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,578 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:42:21,579 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:42:21,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,665 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,666 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:21,666 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,667 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 67
[2020-10-15 01:42:21,667 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,667 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:21,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:21,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:42:21,668 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,686 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:42:21,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,688 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,699 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,699 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:21,699 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,700 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-10-15 01:42:21,700 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,700 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:21,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:21,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:21,701 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,703 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:42:21,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,705 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,707 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,707 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:21,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,708 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:21,708 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,708 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:21,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:21,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:21,709 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,711 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:42:21,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,714 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,717 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,717 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:21,718 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,718 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:21,718 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,719 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:21,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:21,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:21,720 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,721 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:42:21,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,723 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,725 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,725 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:21,725 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,726 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:21,726 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,726 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:21,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:21,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:21,727 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,739 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-15 01:42:21,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,742 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,745 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,745 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:21,746 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,746 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:21,746 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,746 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:21,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:21,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:21,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,750 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2020-10-15 01:42:21,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,752 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,753 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,753 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:21,753 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,754 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:21,754 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,754 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:21,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:21,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:21,755 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,757 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-15 01:42:21,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,759 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,760 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,761 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:21,761 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,761 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:21,762 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,762 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:21,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:21,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:21,763 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-10-15 01:42:21,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:21,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:21,767 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:21,768 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:21,768 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:21,768 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:21,769 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:21,769 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:21,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:21,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:21,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:21,770 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:21,824 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-15 01:42:21,825 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313934146]
[2020-10-15 01:42:21,825 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:42:21,825 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-15 01:42:21,825 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371560021]
[2020-10-15 01:42:21,827 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-15 01:42:21,827 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:42:21,828 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-15 01:42:21,828 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-15 01:42:21,828 INFO  L87              Difference]: Start difference. First operand 273 states and 348 transitions. Second operand 5 states.
[2020-10-15 01:42:22,152 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:23,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:42:23,016 INFO  L93              Difference]: Finished difference Result 577 states and 798 transitions.
[2020-10-15 01:42:23,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-15 01:42:23,017 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 62
[2020-10-15 01:42:23,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:42:23,021 INFO  L225             Difference]: With dead ends: 577
[2020-10-15 01:42:23,022 INFO  L226             Difference]: Without dead ends: 328
[2020-10-15 01:42:23,025 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-15 01:42:23,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 328 states.
[2020-10-15 01:42:23,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 269.
[2020-10-15 01:42:23,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 269 states.
[2020-10-15 01:42:23,123 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 331 transitions.
[2020-10-15 01:42:23,123 INFO  L78                 Accepts]: Start accepts. Automaton has 269 states and 331 transitions. Word has length 62
[2020-10-15 01:42:23,124 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:42:23,124 INFO  L479      AbstractCegarLoop]: Abstraction has 269 states and 331 transitions.
[2020-10-15 01:42:23,124 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-15 01:42:23,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 269 states and 331 transitions.
[2020-10-15 01:42:23,128 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2020-10-15 01:42:23,128 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:23,129 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]
[2020-10-15 01:42:23,129 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-15 01:42:23,129 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:23,129 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:23,129 INFO  L82        PathProgramCache]: Analyzing trace with hash 1882239654, now seen corresponding path program 1 times
[2020-10-15 01:42:23,130 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:23,130 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103591190]
[2020-10-15 01:42:23,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:23,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-15 01:42:23,174 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-15 01:42:23,174 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-15 01:42:23,178 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-15 01:42:23,201 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:42:23 BoogieIcfgContainer
[2020-10-15 01:42:23,201 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-15 01:42:23,203 INFO  L168              Benchmark]: Toolchain (without parser) took 14418.80 ms. Allocated memory was 146.3 MB in the beginning and 484.4 MB in the end (delta: 338.2 MB). Free memory was 101.2 MB in the beginning and 415.7 MB in the end (delta: -314.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:23,204 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-10-15 01:42:23,205 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 583.40 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 172.3 MB in the end (delta: -71.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:23,206 INFO  L168              Benchmark]: Boogie Preprocessor took 94.76 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:23,207 INFO  L168              Benchmark]: RCFGBuilder took 1135.91 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 202.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:23,208 INFO  L168              Benchmark]: TraceAbstraction took 12600.17 ms. Allocated memory was 237.0 MB in the beginning and 484.4 MB in the end (delta: 247.5 MB). Free memory was 202.4 MB in the beginning and 415.7 MB in the end (delta: -213.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:23,211 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 583.40 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 172.3 MB in the end (delta: -71.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 94.76 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1135.91 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 202.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 12600.17 ms. Allocated memory was 237.0 MB in the beginning and 484.4 MB in the end (delta: 247.5 MB). Free memory was 202.4 MB in the beginning and 415.7 MB in the end (delta: -213.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L96]               int pumpRunning  =    0;
[L97]               int systemActive  =    1;
[L309]              int waterLevel  =    1;
[L310]              int methaneLevelCritical  =    0;
[L389]              int cleanupTimeShifts  =    4;
[L654]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int retValue_acc ;
[L463]              int tmp ;
[L467]  FCALL       select_helpers()
[L468]  FCALL       select_features()
[L469]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L469]  RET, EXPR   valid_product()
[L469]              tmp = valid_product()
[L471]  COND TRUE   \read(tmp)
[L473]  FCALL       setup()
[L474]  CALL        runTest()
[L456]  CALL        test()
[L242]              int splverifierCounter ;
[L243]              int tmp ;
[L244]              int tmp___0 ;
[L245]              int tmp___1 ;
[L246]              int tmp___2 ;
[L249]              splverifierCounter = 0
[L251]  COND TRUE   1
[L253]  COND TRUE   splverifierCounter < 4
[L259]              tmp = __VERIFIER_nondet_int()
[L261]  COND TRUE   \read(tmp)
[L263]  CALL        waterRise()
[L327]  COND TRUE   waterLevel < 2
[L328]              waterLevel = waterLevel + 1
[L263]  RET         waterRise()
[L269]              tmp___0 = __VERIFIER_nondet_int()
[L271]  COND FALSE  !(\read(tmp___0))
[L279]              tmp___2 = __VERIFIER_nondet_int()
[L281]  COND FALSE  !(\read(tmp___2))
[L287]              tmp___1 = __VERIFIER_nondet_int()
[L289]  COND TRUE   \read(tmp___1)
[L296]  CALL        timeShift()
[L104]  COND FALSE  !(\read(pumpRunning))
[L111]  COND TRUE   \read(systemActive)
[L113]  CALL        processEnvironment()
[L133]              int tmp ;
[L136]  COND FALSE  !(\read(pumpRunning))
[L151]  FCALL       processEnvironment__wrappee__base()
[L113]  RET         processEnvironment()
[L119]  CALL        __utac_acc__Specification3_spec__1()
[L852]              int tmp ;
[L853]              int tmp___0 ;
[L854]              int tmp___1 ;
[L858]  CALL, EXPR  isMethaneLevelCritical()
[L348]              int retValue_acc ;
[L351]              retValue_acc = methaneLevelCritical
[L352]              return (retValue_acc);
[L858]  RET, EXPR   isMethaneLevelCritical()
[L858]              tmp = isMethaneLevelCritical()
[L860]  COND FALSE  !(\read(tmp))
[L864]  CALL, EXPR  getWaterLevel()
[L380]              int retValue_acc ;
[L383]              retValue_acc = waterLevel
[L384]              return (retValue_acc);
[L864]  RET, EXPR   getWaterLevel()
[L864]              tmp___0 = getWaterLevel()
[L866]  COND TRUE   tmp___0 == 2
[L868]  CALL, EXPR  isPumpRunning()
[L185]              int retValue_acc ;
[L188]              retValue_acc = pumpRunning
[L189]              return (retValue_acc);
[L868]  RET, EXPR   isPumpRunning()
[L868]              tmp___1 = isPumpRunning()
[L870]  COND FALSE  !(\read(tmp___1))
[L874]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 218 SDtfs, 599 SDslu, 252 SDs, 0 SdLazy, 1028 SolverSat, 352 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 104 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 34651 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...