/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_product12.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-15 01:42:31,457 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-15 01:42:31,460 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-15 01:42:31,498 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-15 01:42:31,499 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-15 01:42:31,506 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-15 01:42:31,508 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-15 01:42:31,512 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-15 01:42:31,514 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-15 01:42:31,517 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-10-15 01:42:31,519 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-15 01:42:31,519 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-15 01:42:31,522 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-15 01:42:31,525 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-15 01:42:31,526 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-15 01:42:31,528 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-15 01:42:31,529 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-15 01:42:31,531 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-15 01:42:31,540 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-15 01:42:31,542 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-15 01:42:31,543 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-15 01:42:31,544 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-15 01:42:31,544 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-15 01:42:31,555 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-15 01:42:31,555 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-15 01:42:31,556 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-15 01:42:31,558 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-15 01:42:31,558 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-15 01:42:31,561 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-15 01:42:31,561 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-15 01:42:31,562 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-15 01:42:31,562 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-15 01:42:31,563 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-15 01:42:31,564 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-15 01:42:31,564 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-10-15 01:42:31,565 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-15 01:42:31,567 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-15 01:42:31,568 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 01:42:31,607 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-15 01:42:31,607 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-15 01:42:31,609 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-15 01:42:31,609 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-15 01:42:31,609 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-15 01:42:31,609 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-15 01:42:31,610 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-15 01:42:31,610 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-15 01:42:31,610 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-15 01:42:31,610 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-15 01:42:31,611 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-15 01:42:31,612 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-15 01:42:31,612 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-15 01:42:31,612 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-15 01:42:31,613 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-15 01:42:31,613 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-15 01:42:31,613 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-15 01:42:31,613 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-15 01:42:31,613 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-15 01:42:31,613 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-15 01:42:31,614 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-15 01:42:31,614 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-15 01:42:31,614 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-15 01:42:31,614 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-15 01:42:31,614 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-15 01:42:31,615 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-15 01:42:31,615 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-15 01:42:31,615 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-15 01:42:31,615 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-15 01:42:31,615 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 01:42:31,915 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-15 01:42:31,930 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-15 01:42:31,935 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-15 01:42:31,938 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-15 01:42:31,939 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-15 01:42:31,939 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c
[2020-10-15 01:42:31,995 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b1204792/68a1bf846c3a4ecc84d35f9c03a7c3c9/FLAG18731c0fd
[2020-10-15 01:42:32,516 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-15 01:42:32,516 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c
[2020-10-15 01:42:32,530 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b1204792/68a1bf846c3a4ecc84d35f9c03a7c3c9/FLAG18731c0fd
[2020-10-15 01:42:32,807 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b1204792/68a1bf846c3a4ecc84d35f9c03a7c3c9
[2020-10-15 01:42:32,817 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-15 01:42:32,819 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-15 01:42:32,820 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-15 01:42:32,820 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-15 01:42:32,824 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-15 01:42:32,825 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:32" (1/1) ...
[2020-10-15 01:42:32,828 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac45c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:32, skipping insertion in model container
[2020-10-15 01:42:32,829 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:32" (1/1) ...
[2020-10-15 01:42:32,838 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-15 01:42:32,893 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-15 01:42:33,285 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:42:33,296 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-15 01:42:33,373 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:42:33,418 INFO  L208         MainTranslator]: Completed translation
[2020-10-15 01:42:33,419 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33 WrapperNode
[2020-10-15 01:42:33,419 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-15 01:42:33,420 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-15 01:42:33,420 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-15 01:42:33,420 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-15 01:42:33,434 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (1/1) ...
[2020-10-15 01:42:33,436 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (1/1) ...
[2020-10-15 01:42:33,459 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (1/1) ...
[2020-10-15 01:42:33,459 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (1/1) ...
[2020-10-15 01:42:33,491 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (1/1) ...
[2020-10-15 01:42:33,501 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (1/1) ...
[2020-10-15 01:42:33,507 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (1/1) ...
[2020-10-15 01:42:33,514 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-15 01:42:33,515 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-15 01:42:33,515 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-15 01:42:33,515 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-15 01:42:33,517 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (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 01:42:33,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-15 01:42:33,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-15 01:42:33,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:42:33,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:42:33,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-15 01:42:33,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-15 01:42:33,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-15 01:42:33,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-10-15 01:42:33,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-15 01:42:33,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-15 01:42:33,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-15 01:42:33,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-15 01:42:33,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-15 01:42:33,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-15 01:42:33,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-15 01:42:33,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-15 01:42:33,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-15 01:42:33,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-15 01:42:33,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-15 01:42:33,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-15 01:42:33,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-15 01:42:33,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-15 01:42:33,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-15 01:42:33,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-15 01:42:33,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-15 01:42:33,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-15 01:42:33,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-15 01:42:33,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:42:33,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-15 01:42:33,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-15 01:42:33,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-15 01:42:33,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-15 01:42:33,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-15 01:42:33,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-15 01:42:33,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-15 01:42:33,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-15 01:42:33,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-15 01:42:33,595 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-15 01:42:33,595 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-15 01:42:33,595 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-15 01:42:33,595 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-15 01:42:33,595 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-15 01:42:33,595 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-15 01:42:33,595 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-15 01:42:33,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:42:33,596 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-15 01:42:33,596 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-15 01:42:33,596 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-15 01:42:33,596 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-15 01:42:33,596 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-15 01:42:33,597 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-15 01:42:33,597 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-15 01:42:33,597 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-15 01:42:33,597 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-15 01:42:33,597 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-15 01:42:33,597 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-15 01:42:33,597 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-15 01:42:33,598 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-15 01:42:33,598 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-10-15 01:42:33,598 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-15 01:42:33,598 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-15 01:42:33,598 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-15 01:42:33,598 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-15 01:42:33,599 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-15 01:42:33,599 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-15 01:42:33,599 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-15 01:42:33,599 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-15 01:42:33,599 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-15 01:42:33,599 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-15 01:42:33,600 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-15 01:42:33,600 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-15 01:42:33,600 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-15 01:42:33,600 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-15 01:42:33,600 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-15 01:42:33,600 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-15 01:42:33,600 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:42:33,601 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:42:33,601 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-15 01:42:33,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-15 01:42:33,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-15 01:42:33,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-15 01:42:33,601 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-15 01:42:33,601 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-15 01:42:33,602 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-15 01:42:33,602 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-15 01:42:33,602 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-15 01:42:33,602 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-15 01:42:33,602 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-15 01:42:34,548 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-15 01:42:34,548 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-15 01:42:34,553 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:34 BoogieIcfgContainer
[2020-10-15 01:42:34,553 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-15 01:42:34,555 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-15 01:42:34,555 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-15 01:42:34,558 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-15 01:42:34,558 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:42:32" (1/3) ...
[2020-10-15 01:42:34,559 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2433ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:34, skipping insertion in model container
[2020-10-15 01:42:34,559 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:33" (2/3) ...
[2020-10-15 01:42:34,560 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2433ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:34, skipping insertion in model container
[2020-10-15 01:42:34,560 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:34" (3/3) ...
[2020-10-15 01:42:34,562 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c
[2020-10-15 01:42:34,572 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-15 01:42:34,580 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-15 01:42:34,595 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-15 01:42:34,621 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-15 01:42:34,622 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-15 01:42:34,622 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-15 01:42:34,622 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-15 01:42:34,623 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-15 01:42:34,623 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-15 01:42:34,623 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-15 01:42:34,623 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-15 01:42:34,650 INFO  L276                IsEmpty]: Start isEmpty. Operand 154 states.
[2020-10-15 01:42:34,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-15 01:42:34,660 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:34,661 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 01:42:34,662 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:34,667 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:34,667 INFO  L82        PathProgramCache]: Analyzing trace with hash 1715921214, now seen corresponding path program 1 times
[2020-10-15 01:42:34,676 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:34,677 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139266995]
[2020-10-15 01:42:34,677 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:34,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:35,139 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:35,231 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:36,051 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:37,199 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:37,200 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-15 01:42:37,201 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-15 01:42:37,201 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2199
[2020-10-15 01:42:37,207 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:37,208 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:37,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-15 01:42:37,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:37,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-15 01:42:37,210 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-10-15 01:42:37,847 WARN  L193               SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:42:37,851 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:42:37,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:37,914 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,023 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,023 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:38,024 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,030 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 133
[2020-10-15 01:42:38,030 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,030 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:38,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:38,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:42:38,032 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-10-15 01:42:38,055 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:42:38,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:38,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,060 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,060 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:38,061 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,061 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:38,061 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,061 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:38,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:38,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:38,062 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:38,063 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:42:38,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:38,066 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,068 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,069 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:38,069 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,069 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:38,069 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,069 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:38,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:38,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:38,070 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:38,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:42:38,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:38,074 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,077 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,077 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:38,077 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,077 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:38,078 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,078 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:38,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:38,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:38,079 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:38,080 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:42:38,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:38,083 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,088 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,089 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:38,089 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,089 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-15 01:42:38,089 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,090 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,090 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:38,090 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:38,090 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:38,091 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:38,094 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-15 01:42:38,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:38,097 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,099 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,100 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:38,100 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,100 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:38,100 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,101 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:38,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:38,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:38,101 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:38,103 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-15 01:42:38,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:38,110 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,114 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,114 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:38,115 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,115 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-15 01:42:38,115 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,115 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,116 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-15 01:42:38,116 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:38,116 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:38,116 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:38,131 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-15 01:42:38,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:38,133 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:38,134 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:38,135 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:38,135 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:38,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:38,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:38,136 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:38,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:38,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:38,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:38,137 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:38,153 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 01:42:38,154 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139266995]
[2020-10-15 01:42:38,156 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:42:38,156 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-10-15 01:42:38,157 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90553021]
[2020-10-15 01:42:38,162 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-15 01:42:38,163 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:42:38,177 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-15 01:42:38,179 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-10-15 01:42:38,181 INFO  L87              Difference]: Start difference. First operand 154 states. Second operand 7 states.
[2020-10-15 01:42:38,683 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:39,795 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:42:40,112 WARN  L193               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:42:40,355 WARN  L193               SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-15 01:42:40,616 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:40,933 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:42:41,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:42:41,593 INFO  L93              Difference]: Finished difference Result 319 states and 429 transitions.
[2020-10-15 01:42:41,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-15 01:42:41,595 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 52
[2020-10-15 01:42:41,595 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:42:41,621 INFO  L225             Difference]: With dead ends: 319
[2020-10-15 01:42:41,621 INFO  L226             Difference]: Without dead ends: 199
[2020-10-15 01:42:41,628 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2020-10-15 01:42:41,649 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2020-10-15 01:42:41,747 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 172.
[2020-10-15 01:42:41,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 172 states.
[2020-10-15 01:42:41,752 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 209 transitions.
[2020-10-15 01:42:41,754 INFO  L78                 Accepts]: Start accepts. Automaton has 172 states and 209 transitions. Word has length 52
[2020-10-15 01:42:41,754 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:42:41,754 INFO  L479      AbstractCegarLoop]: Abstraction has 172 states and 209 transitions.
[2020-10-15 01:42:41,754 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-15 01:42:41,755 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 209 transitions.
[2020-10-15 01:42:41,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-15 01:42:41,759 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:41,760 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 01:42:41,760 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-15 01:42:41,760 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:41,760 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:41,761 INFO  L82        PathProgramCache]: Analyzing trace with hash 2042002539, now seen corresponding path program 1 times
[2020-10-15 01:42:41,761 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:41,761 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942929593]
[2020-10-15 01:42:41,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:41,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:41,811 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,381 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 94
[2020-10-15 01:42:42,382 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,382 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 589
[2020-10-15 01:42:42,382 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,382 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-15 01:42:42,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:42,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-10-15 01:42:42,384 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,698 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:42:42,699 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:42:42,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,721 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,773 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,773 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:42,773 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,774 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 61
[2020-10-15 01:42:42,774 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,774 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:42,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:42,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:42:42,776 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,796 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:42:42,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,797 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,799 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,799 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:42,799 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,800 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:42,800 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,800 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:42,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:42,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:42,801 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,805 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:42:42,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,808 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,809 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:42,809 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,809 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:42,809 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,809 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:42,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:42,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:42,813 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-15 01:42:42,814 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:42:42,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,816 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,819 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:42,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:42,820 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,820 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:42,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:42,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:42,821 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,825 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:42:42,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,827 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,829 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,830 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:42,830 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,830 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:42,831 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,831 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:42,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:42,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:42,832 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,842 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-15 01:42:42,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,844 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,846 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,846 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:42,847 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,847 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:42,847 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,847 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:42,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:42,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:42,848 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,850 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2020-10-15 01:42:42,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,852 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,852 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,853 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:42,853 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,853 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:42,853 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,854 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:42,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:42,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:42,854 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,855 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-15 01:42:42,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,857 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,858 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,858 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:42,858 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,859 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:42,859 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,859 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:42,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:42,861 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:42,863 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-15 01:42:42,864 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-10-15 01:42:42,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:42,866 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:42,868 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:42,868 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:42,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:42,868 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:42,868 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:42,869 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:42,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:42,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:42,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:42,869 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:42,879 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 01:42:42,879 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942929593]
[2020-10-15 01:42:42,879 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:42:42,880 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-15 01:42:42,880 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47574627]
[2020-10-15 01:42:42,882 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-15 01:42:42,882 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:42:42,883 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-15 01:42:42,883 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-15 01:42:42,883 INFO  L87              Difference]: Start difference. First operand 172 states and 209 transitions. Second operand 5 states.
[2020-10-15 01:42:43,226 WARN  L193               SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:45,118 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:42:45,119 INFO  L93              Difference]: Finished difference Result 495 states and 639 transitions.
[2020-10-15 01:42:45,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-15 01:42:45,120 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 62
[2020-10-15 01:42:45,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:42:45,125 INFO  L225             Difference]: With dead ends: 495
[2020-10-15 01:42:45,126 INFO  L226             Difference]: Without dead ends: 347
[2020-10-15 01:42:45,128 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-15 01:42:45,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 347 states.
[2020-10-15 01:42:45,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 291.
[2020-10-15 01:42:45,249 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 291 states.
[2020-10-15 01:42:45,254 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 361 transitions.
[2020-10-15 01:42:45,255 INFO  L78                 Accepts]: Start accepts. Automaton has 291 states and 361 transitions. Word has length 62
[2020-10-15 01:42:45,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:42:45,256 INFO  L479      AbstractCegarLoop]: Abstraction has 291 states and 361 transitions.
[2020-10-15 01:42:45,256 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-15 01:42:45,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states and 361 transitions.
[2020-10-15 01:42:45,267 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2020-10-15 01:42:45,267 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:45,267 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]
[2020-10-15 01:42:45,268 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-15 01:42:45,268 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:45,268 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:45,268 INFO  L82        PathProgramCache]: Analyzing trace with hash -423236225, now seen corresponding path program 1 times
[2020-10-15 01:42:45,270 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:45,270 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341925000]
[2020-10-15 01:42:45,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:45,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-15 01:42:45,323 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-15 01:42:45,323 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-15 01:42:45,327 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-15 01:42:45,359 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:42:45 BoogieIcfgContainer
[2020-10-15 01:42:45,359 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-15 01:42:45,362 INFO  L168              Benchmark]: Toolchain (without parser) took 12542.64 ms. Allocated memory was 145.8 MB in the beginning and 423.6 MB in the end (delta: 277.9 MB). Free memory was 100.7 MB in the beginning and 152.9 MB in the end (delta: -52.2 MB). Peak memory consumption was 225.7 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:45,363 INFO  L168              Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB.
[2020-10-15 01:42:45,365 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 599.58 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 171.2 MB in the end (delta: -70.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:45,366 INFO  L168              Benchmark]: Boogie Preprocessor took 94.43 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 166.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:45,368 INFO  L168              Benchmark]: RCFGBuilder took 1038.54 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 166.9 MB in the beginning and 200.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:45,377 INFO  L168              Benchmark]: TraceAbstraction took 10804.64 ms. Allocated memory was 235.4 MB in the beginning and 423.6 MB in the end (delta: 188.2 MB). Free memory was 200.7 MB in the beginning and 152.9 MB in the end (delta: 47.7 MB). Peak memory consumption was 235.9 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:45,388 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 599.58 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 171.2 MB in the end (delta: -70.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 94.43 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 166.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1038.54 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 166.9 MB in the beginning and 200.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 10804.64 ms. Allocated memory was 235.4 MB in the beginning and 423.6 MB in the end (delta: 188.2 MB). Free memory was 200.7 MB in the beginning and 152.9 MB in the end (delta: 47.7 MB). Peak memory consumption was 235.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L158]              int pumpRunning  =    0;
[L159]              int systemActive  =    1;
[L306]              int waterLevel  =    1;
[L307]              int methaneLevelCritical  =    0;
[L593]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L790]              int cleanupTimeShifts  =    4;
[L863]              int retValue_acc ;
[L864]              int tmp ;
[L868]  FCALL       select_helpers()
[L869]  FCALL       select_features()
[L870]  CALL, EXPR  valid_product()
[L415]              int retValue_acc ;
[L418]              retValue_acc = 1
[L419]              return (retValue_acc);
[L870]  RET, EXPR   valid_product()
[L870]              tmp = valid_product()
[L872]  COND TRUE   \read(tmp)
[L874]  FCALL       setup()
[L875]  CALL        runTest()
[L857]  CALL        test()
[L85]               int splverifierCounter ;
[L86]               int tmp ;
[L87]               int tmp___0 ;
[L88]               int tmp___1 ;
[L89]               int tmp___2 ;
[L92]               splverifierCounter = 0
[L94]   COND TRUE   1
[L96]   COND TRUE   splverifierCounter < 4
[L102]              tmp = __VERIFIER_nondet_int()
[L104]  COND TRUE   \read(tmp)
[L106]  CALL        waterRise()
[L324]  COND TRUE   waterLevel < 2
[L325]              waterLevel = waterLevel + 1
[L106]  RET         waterRise()
[L112]              tmp___0 = __VERIFIER_nondet_int()
[L114]  COND FALSE  !(\read(tmp___0))
[L122]              tmp___2 = __VERIFIER_nondet_int()
[L124]  COND FALSE  !(\read(tmp___2))
[L130]              tmp___1 = __VERIFIER_nondet_int()
[L132]  COND FALSE  !(\read(tmp___1))
[L141]  CALL        timeShift()
[L165]  COND FALSE  !(\read(pumpRunning))
[L172]  COND TRUE   \read(systemActive)
[L174]  FCALL       processEnvironment()
[L180]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L345]              int retValue_acc ;
[L348]              retValue_acc = methaneLevelCritical
[L349]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L377]              int retValue_acc ;
[L380]              retValue_acc = waterLevel
[L381]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L238]              int retValue_acc ;
[L241]              retValue_acc = pumpRunning
[L242]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L890]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 205 SDtfs, 384 SDslu, 252 SDs, 0 SdLazy, 819 SolverSat, 222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 83 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 33121 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...