/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 12:02:56,493 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 12:02:56,497 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 12:02:56,538 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 12:02:56,539 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 12:02:56,550 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 12:02:56,552 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 12:02:56,555 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 12:02:56,558 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 12:02:56,560 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 12:02:56,560 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 12:02:56,562 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 12:02:56,562 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 12:02:56,567 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 12:02:56,569 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 12:02:56,571 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 12:02:56,572 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 12:02:56,574 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 12:02:56,575 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 12:02:56,581 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 12:02:56,585 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 12:02:56,586 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 12:02:56,587 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 12:02:56,587 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 12:02:56,592 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 12:02:56,592 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 12:02:56,592 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 12:02:56,596 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 12:02:56,596 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 12:02:56,597 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 12:02:56,597 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 12:02:56,598 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 12:02:56,599 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 12:02:56,600 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 12:02:56,601 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 12:02:56,601 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 12:02:56,602 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 12:02:56,602 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 12:02:56,602 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 12:02:56,604 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 12:02:56,605 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 12:02:56,606 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 12:02:56,655 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 12:02:56,655 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 12:02:56,657 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 12:02:56,657 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 12:02:56,658 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 12:02:56,658 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 12:02:56,658 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 12:02:56,658 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 12:02:56,659 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 12:02:56,659 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 12:02:56,660 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 12:02:56,660 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 12:02:56,660 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 12:02:56,661 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 12:02:56,661 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 12:02:56,661 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 12:02:56,661 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 12:02:56,662 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 12:02:56,662 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 12:02:56,662 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 12:02:56,662 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 12:02:56,662 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 12:02:56,663 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 12:02:56,663 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 12:02:56,663 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 12:02:56,663 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 12:02:56,663 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 12:02:56,664 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 12:02:56,664 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 12:02:56,664 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
[2020-09-25 12:02:57,102 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 12:02:57,129 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 12:02:57,134 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 12:02:57,135 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 12:02:57,136 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 12:02:57,137 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-09-25 12:02:57,222 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060337108/137a4cfefae04d9f8346f26d14f14b76/FLAGe12b3ce14
[2020-09-25 12:02:57,812 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 12:02:57,812 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-09-25 12:02:57,833 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060337108/137a4cfefae04d9f8346f26d14f14b76/FLAGe12b3ce14
[2020-09-25 12:02:58,098 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060337108/137a4cfefae04d9f8346f26d14f14b76
[2020-09-25 12:02:58,114 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 12:02:58,120 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 12:02:58,124 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 12:02:58,125 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 12:02:58,129 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 12:02:58,130 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,135 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58, skipping insertion in model container
[2020-09-25 12:02:58,135 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,146 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 12:02:58,212 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 12:02:58,605 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:02:58,623 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 12:02:58,799 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:02:58,838 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 12:02:58,839 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58 WrapperNode
[2020-09-25 12:02:58,839 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 12:02:58,840 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 12:02:58,840 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 12:02:58,840 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 12:02:58,858 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,858 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,879 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,880 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,911 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,921 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,926 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
[2020-09-25 12:02:58,936 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 12:02:58,937 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 12:02:58,937 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 12:02:58,937 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 12:02:58,939 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 12:02:59,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 12:02:59,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 12:02:59,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:02:59,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 12:02:59,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 12:02:59,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 12:02:59,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 12:02:59,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 12:02:59,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 12:02:59,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 12:02:59,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 12:02:59,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 12:02:59,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 12:02:59,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 12:02:59,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 12:02:59,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:02:59,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 12:02:59,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 12:02:59,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 12:02:59,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 12:02:59,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 12:02:59,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 12:02:59,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 12:02:59,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 12:02:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 12:02:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 12:02:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 12:02:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 12:02:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 12:02:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 12:02:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:02:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 12:02:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 12:02:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 12:02:59,022 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 12:02:59,023 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 12:02:59,023 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 12:02:59,023 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 12:02:59,023 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 12:02:59,023 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 12:02:59,023 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 12:02:59,023 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 12:02:59,024 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 12:02:59,024 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 12:02:59,024 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 12:02:59,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:02:59,024 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 12:02:59,024 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 12:02:59,025 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 12:02:59,025 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 12:02:59,025 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 12:02:59,025 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 12:02:59,025 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 12:02:59,025 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 12:02:59,026 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 12:02:59,026 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 12:02:59,026 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 12:02:59,026 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 12:02:59,026 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 12:02:59,026 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 12:02:59,027 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 12:02:59,027 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 12:02:59,027 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 12:02:59,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 12:02:59,027 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 12:02:59,027 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 12:02:59,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 12:02:59,028 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 12:02:59,028 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 12:02:59,028 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 12:02:59,028 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 12:02:59,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 12:02:59,028 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 12:02:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:02:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:02:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 12:02:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 12:02:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 12:02:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 12:02:59,030 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 12:02:59,030 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 12:02:59,030 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 12:03:00,124 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 12:03:00,124 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 12:03:00,131 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:00 BoogieIcfgContainer
[2020-09-25 12:03:00,131 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 12:03:00,132 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 12:03:00,133 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 12:03:00,136 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 12:03:00,137 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:02:58" (1/3) ...
[2020-09-25 12:03:00,137 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abd8f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:00, skipping insertion in model container
[2020-09-25 12:03:00,138 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (2/3) ...
[2020-09-25 12:03:00,138 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abd8f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:00, skipping insertion in model container
[2020-09-25 12:03:00,138 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:00" (3/3) ...
[2020-09-25 12:03:00,141 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c
[2020-09-25 12:03:00,152 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 12:03:00,164 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 12:03:00,190 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 12:03:00,224 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 12:03:00,225 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 12:03:00,225 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 12:03:00,225 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 12:03:00,225 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 12:03:00,225 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 12:03:00,226 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 12:03:00,226 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 12:03:00,255 INFO  L276                IsEmpty]: Start isEmpty. Operand 258 states.
[2020-09-25 12:03:00,273 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 12:03:00,273 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:00,275 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 12:03:00,275 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:00,284 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:00,284 INFO  L82        PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times
[2020-09-25 12:03:00,296 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:00,296 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838694656]
[2020-09-25 12:03:00,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:00,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:00,776 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:00,979 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:01,509 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:04,623 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:04,623 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 12:03:04,623 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 12:03:04,624 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3992
[2020-09-25 12:03:04,627 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:04,628 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:04,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 12:03:04,632 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 12:03:04,632 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-25 12:03:04,632 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-09-25 12:03:05,095 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:03:05,098 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:03:05,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,174 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,387 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,387 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:03:05,388 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,388 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 250
[2020-09-25 12:03:05,388 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,388 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:05,389 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:05,389 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 12:03:05,389 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:05,451 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:03:05,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,454 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,458 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,459 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:05,459 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,459 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:03:05,459 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,460 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:05,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:05,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:05,461 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:05,464 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:03:05,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,468 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,472 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,472 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:05,472 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,472 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:05,473 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,473 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:05,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:05,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:05,474 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:05,479 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:03:05,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,482 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,490 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,491 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:05,491 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,491 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 12:03:05,492 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,492 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:05,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:05,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:05,493 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:05,498 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:03:05,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,501 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,504 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,504 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:05,504 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,505 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 12:03:05,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,505 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:05,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:05,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:05,506 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:05,509 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 12:03:05,511 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,513 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,516 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,516 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:05,516 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,517 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:05,517 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,517 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:05,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:05,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:05,519 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 12:03:05,521 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 12:03:05,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,524 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,535 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,535 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:05,535 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 12:03:05,536 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,536 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 12:03:05,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:05,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:05,537 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:05,566 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 12:03:05,568 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:05,571 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:05,573 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:05,574 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:05,574 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:05,575 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:05,575 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:05,575 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:05,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:05,576 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:05,576 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:05,576 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:05,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 12:03:05,619 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838694656]
[2020-09-25 12:03:05,622 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:03:05,622 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 12:03:05,623 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696152428]
[2020-09-25 12:03:05,633 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 12:03:05,633 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:03:05,675 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 12:03:05,676 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 12:03:05,679 INFO  L87              Difference]: Start difference. First operand 258 states. Second operand 8 states.
[2020-09-25 12:03:06,235 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:07,632 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:07,955 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:03:08,296 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:08,612 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:08,920 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:03:09,235 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:09,537 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:10,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:03:10,306 INFO  L93              Difference]: Finished difference Result 453 states and 557 transitions.
[2020-09-25 12:03:10,310 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 12:03:10,312 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 12:03:10,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:03:10,331 INFO  L225             Difference]: With dead ends: 453
[2020-09-25 12:03:10,331 INFO  L226             Difference]: Without dead ends: 314
[2020-09-25 12:03:10,337 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 12:03:10,359 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 314 states.
[2020-09-25 12:03:10,450 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 282.
[2020-09-25 12:03:10,452 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 282 states.
[2020-09-25 12:03:10,455 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 317 transitions.
[2020-09-25 12:03:10,457 INFO  L78                 Accepts]: Start accepts. Automaton has 282 states and 317 transitions. Word has length 153
[2020-09-25 12:03:10,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:03:10,458 INFO  L479      AbstractCegarLoop]: Abstraction has 282 states and 317 transitions.
[2020-09-25 12:03:10,458 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 12:03:10,459 INFO  L276                IsEmpty]: Start isEmpty. Operand 282 states and 317 transitions.
[2020-09-25 12:03:10,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 12:03:10,464 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:10,465 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 12:03:10,465 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 12:03:10,465 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:10,466 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:10,466 INFO  L82        PathProgramCache]: Analyzing trace with hash -777322396, now seen corresponding path program 1 times
[2020-09-25 12:03:10,466 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:10,466 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424600261]
[2020-09-25 12:03:10,467 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:10,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:10,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:10,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:10,741 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:11,566 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,828 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:15,566 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:15,566 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 12:03:15,566 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 12:03:15,567 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5042
[2020-09-25 12:03:15,567 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:15,567 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:15,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:15,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 12:03:15,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 70
[2020-09-25 12:03:15,568 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:15,853 WARN  L193               SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:03:15,854 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:03:15,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:15,921 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,107 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,107 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:03:16,107 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,108 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 218
[2020-09-25 12:03:16,108 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,108 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:16,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:16,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 12:03:16,110 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:16,150 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:03:16,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,156 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,156 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:16,157 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,157 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 12:03:16,157 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,157 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:16,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:16,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:16,158 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 12:03:16,159 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:03:16,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,170 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,171 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:16,171 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,171 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 12:03:16,172 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,172 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:16,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:16,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:16,173 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:16,174 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:03:16,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,177 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,183 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,184 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:16,184 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,184 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 12:03:16,184 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,184 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:16,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:16,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:16,185 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:16,187 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:03:16,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,189 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,192 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,192 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:16,192 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,192 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 12:03:16,192 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,193 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,193 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:16,193 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:16,193 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:16,193 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:16,207 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 12:03:16,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,210 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,217 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,217 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 12:03:16,217 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,218 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 12:03:16,218 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,218 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:16,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:16,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 12:03:16,219 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:16,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 12:03:16,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,224 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,224 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:16,224 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,225 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:16,229 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,229 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,230 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:16,230 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:16,230 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:16,230 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:16,231 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 12:03:16,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,233 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,235 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,235 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:16,235 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,235 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:16,235 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,236 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:16,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:16,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:16,240 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 12:03:16,241 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 12:03:16,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:16,244 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:16,246 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:16,247 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:16,247 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:16,247 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 12:03:16,247 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:16,247 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:16,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:16,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:16,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:16,248 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 12:03:16,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 12:03:16,290 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424600261]
[2020-09-25 12:03:16,290 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:03:16,290 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 12:03:16,291 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956508667]
[2020-09-25 12:03:16,295 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 12:03:16,295 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:03:16,295 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 12:03:16,296 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 12:03:16,296 INFO  L87              Difference]: Start difference. First operand 282 states and 317 transitions. Second operand 5 states.
[2020-09-25 12:03:16,846 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:17,553 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:03:17,553 INFO  L93              Difference]: Finished difference Result 482 states and 579 transitions.
[2020-09-25 12:03:17,554 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 12:03:17,554 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 159
[2020-09-25 12:03:17,555 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:03:17,559 INFO  L225             Difference]: With dead ends: 482
[2020-09-25 12:03:17,559 INFO  L226             Difference]: Without dead ends: 310
[2020-09-25 12:03:17,562 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 12:03:17,563 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 310 states.
[2020-09-25 12:03:17,610 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 282.
[2020-09-25 12:03:17,610 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 282 states.
[2020-09-25 12:03:17,612 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 314 transitions.
[2020-09-25 12:03:17,612 INFO  L78                 Accepts]: Start accepts. Automaton has 282 states and 314 transitions. Word has length 159
[2020-09-25 12:03:17,613 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:03:17,613 INFO  L479      AbstractCegarLoop]: Abstraction has 282 states and 314 transitions.
[2020-09-25 12:03:17,613 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 12:03:17,613 INFO  L276                IsEmpty]: Start isEmpty. Operand 282 states and 314 transitions.
[2020-09-25 12:03:17,617 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-25 12:03:17,617 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:17,617 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 12:03:17,618 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 12:03:17,618 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:17,618 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:17,618 INFO  L82        PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times
[2020-09-25 12:03:17,618 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:17,619 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846917127]
[2020-09-25 12:03:17,619 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:17,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 12:03:17,679 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 12:03:17,680 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 12:03:17,685 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 12:03:17,711 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:03:17 BoogieIcfgContainer
[2020-09-25 12:03:17,712 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 12:03:17,714 INFO  L168              Benchmark]: Toolchain (without parser) took 19597.78 ms. Allocated memory was 148.9 MB in the beginning and 454.6 MB in the end (delta: 305.7 MB). Free memory was 104.2 MB in the beginning and 141.7 MB in the end (delta: -37.5 MB). Peak memory consumption was 268.2 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:17,715 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 12:03:17,716 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 715.54 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 103.6 MB in the beginning and 177.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:17,717 INFO  L168              Benchmark]: Boogie Preprocessor took 96.51 ms. Allocated memory is still 206.6 MB. Free memory was 177.6 MB in the beginning and 173.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:17,718 INFO  L168              Benchmark]: RCFGBuilder took 1194.14 ms. Allocated memory was 206.6 MB in the beginning and 234.9 MB in the end (delta: 28.3 MB). Free memory was 173.7 MB in the beginning and 180.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:17,719 INFO  L168              Benchmark]: TraceAbstraction took 17579.14 ms. Allocated memory was 234.9 MB in the beginning and 454.6 MB in the end (delta: 219.7 MB). Free memory was 180.0 MB in the beginning and 141.7 MB in the end (delta: 38.3 MB). Peak memory consumption was 258.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:17,723 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 148.9 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 715.54 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 103.6 MB in the beginning and 177.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.51 ms. Allocated memory is still 206.6 MB. Free memory was 177.6 MB in the beginning and 173.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1194.14 ms. Allocated memory was 206.6 MB in the beginning and 234.9 MB in the end (delta: 28.3 MB). Free memory was 173.7 MB in the beginning and 180.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17579.14 ms. Allocated memory was 234.9 MB in the beginning and 454.6 MB in the end (delta: 219.7 MB). Free memory was 180.0 MB in the beginning and 141.7 MB in the end (delta: 38.3 MB). Peak memory consumption was 258.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L48]               int pumpRunning  =    0;
[L49]               int systemActive  =    1;
[L307]              int cleanupTimeShifts  =    4;
[L403]              int waterLevel  =    1;
[L404]              int methaneLevelCritical  =    0;
[L652]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L380]              int retValue_acc ;
[L381]              int tmp ;
[L385]  FCALL       select_helpers()
[L386]  FCALL       select_features()
[L387]  CALL, EXPR  valid_product()
[L253]              int retValue_acc ;
[L256]              retValue_acc = 1
[L257]              return (retValue_acc);
[L387]  RET, EXPR   valid_product()
[L387]              tmp = valid_product()
[L389]  COND TRUE   \read(tmp)
[L391]  FCALL       setup()
[L392]  CALL        runTest()
[L374]  CALL        test()
[L160]              int splverifierCounter ;
[L161]              int tmp ;
[L162]              int tmp___0 ;
[L163]              int tmp___1 ;
[L164]              int tmp___2 ;
[L167]              splverifierCounter = 0
[L169]  COND TRUE   1
[L171]  COND TRUE   splverifierCounter < 4
[L177]              tmp = __VERIFIER_nondet_int()
[L179]  COND TRUE   \read(tmp)
[L181]  CALL        waterRise()
[L421]  COND TRUE   waterLevel < 2
[L422]              waterLevel = waterLevel + 1
[L181]  RET         waterRise()
[L187]              tmp___0 = __VERIFIER_nondet_int()
[L189]  COND FALSE  !(\read(tmp___0))
[L197]              tmp___2 = __VERIFIER_nondet_int()
[L199]  COND TRUE   \read(tmp___2)
[L212]  CALL        timeShift()
[L56]   COND FALSE  !(\read(pumpRunning))
[L63]   COND TRUE   \read(systemActive)
[L65]   FCALL       processEnvironment()
[L71]   CALL        __utac_acc__Specification3_spec__1()
[L265]              int tmp ;
[L266]              int tmp___0 ;
[L267]              int tmp___1 ;
[L271]  CALL, EXPR  isMethaneLevelCritical()
[L442]              int retValue_acc ;
[L445]              retValue_acc = methaneLevelCritical
[L446]              return (retValue_acc);
[L271]  RET, EXPR   isMethaneLevelCritical()
[L271]              tmp = isMethaneLevelCritical()
[L273]  COND FALSE  !(\read(tmp))
[L277]  CALL, EXPR  getWaterLevel()
[L474]              int retValue_acc ;
[L477]              retValue_acc = waterLevel
[L478]              return (retValue_acc);
[L277]  RET, EXPR   getWaterLevel()
[L277]              tmp___0 = getWaterLevel()
[L279]  COND TRUE   tmp___0 == 2
[L281]  CALL, EXPR  isPumpRunning()
[L111]              int retValue_acc ;
[L114]              retValue_acc = pumpRunning
[L115]              return (retValue_acc);
[L281]  RET, EXPR   isPumpRunning()
[L281]              tmp___1 = isPumpRunning()
[L283]  COND FALSE  !(\read(tmp___1))
[L287]  CALL        __automaton_fail()
[L302]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 395 SDtfs, 578 SDslu, 673 SDs, 0 SdLazy, 1088 SolverSat, 151 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 60 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 130146 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...