/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:18:37,551 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:18:37,555 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:18:37,581 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:18:37,581 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:18:37,582 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:18:37,584 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:18:37,586 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:18:37,587 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:18:37,588 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:18:37,589 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:18:37,591 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:18:37,591 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:18:37,592 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:18:37,593 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:18:37,595 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:18:37,596 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:18:37,597 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:18:37,598 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:18:37,600 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:18:37,603 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:18:37,604 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:18:37,607 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:18:37,608 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:18:37,611 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:18:37,611 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:18:37,614 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:18:37,615 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:18:37,615 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:18:37,616 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:18:37,618 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:18:37,619 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:18:37,620 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:18:37,621 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:18:37,622 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:18:37,623 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:18:37,624 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:18:37,624 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:18:37,624 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:18:37,625 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:18:37,627 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:18:37,628 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 14:18:37,691 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:18:37,692 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:18:37,693 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:18:37,693 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:18:37,693 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:18:37,694 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:18:37,694 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:18:37,695 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:18:37,695 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:18:37,695 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:18:37,695 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:18:37,695 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:18:37,695 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:18:37,696 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:18:37,696 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:18:37,696 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:18:37,696 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:18:37,696 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:18:37,697 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:18:37,698 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:18:37,698 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:18:37,698 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:37,698 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:18:37,699 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:18:37,699 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:18:37,699 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:18:37,699 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:18:37,699 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:18:37,700 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:18:37,700 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
[2020-09-25 14:18:38,190 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:18:38,206 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:18:38,213 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:18:38,215 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:18:38,215 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:18:38,216 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-25 14:18:38,302 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a95863c29/88a889823e804b28a3db3872f4c72c7c/FLAG94e1e8253
[2020-09-25 14:18:38,913 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:18:38,914 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-25 14:18:38,931 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a95863c29/88a889823e804b28a3db3872f4c72c7c/FLAG94e1e8253
[2020-09-25 14:18:39,194 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a95863c29/88a889823e804b28a3db3872f4c72c7c
[2020-09-25 14:18:39,210 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:18:39,217 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:18:39,220 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:39,220 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:18:39,224 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:18:39,225 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,230 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39, skipping insertion in model container
[2020-09-25 14:18:39,230 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,240 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:18:39,320 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:18:39,681 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:39,696 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:18:39,882 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:39,919 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:18:39,919 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39 WrapperNode
[2020-09-25 14:18:39,919 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:39,920 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:18:39,920 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:18:39,920 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:18:39,934 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,935 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,955 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,955 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,987 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:39,998 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:40,004 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
[2020-09-25 14:18:40,012 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:18:40,013 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:18:40,013 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:18:40,013 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:18:40,015 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:40,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:18:40,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:18:40,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:40,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:18:40,093 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:18:40,093 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:18:40,093 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:18:40,093 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:18:40,094 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:18:40,094 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:18:40,094 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:18:40,094 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:18:40,094 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:18:40,094 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:18:40,095 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 14:18:40,095 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:40,095 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:40,095 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:40,096 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:18:40,096 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:18:40,096 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:18:40,096 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:18:40,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:40,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:18:40,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:18:40,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:18:40,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:18:40,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:18:40,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:18:40,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 14:18:40,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 14:18:40,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:18:40,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:18:40,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:18:40,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:18:40,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:18:40,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:40,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:18:40,099 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:18:40,100 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:18:40,100 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:18:40,100 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:18:40,100 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:18:40,100 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:18:40,100 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:18:40,101 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:18:40,101 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:18:40,101 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:18:40,101 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:18:40,101 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:18:40,101 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:18:40,102 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:18:40,102 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:18:40,102 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:18:40,102 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:18:40,102 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:18:40,102 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:18:40,103 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:18:40,103 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 14:18:40,103 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:18:40,103 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:18:40,103 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:18:40,103 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:18:40,103 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:40,104 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:18:40,104 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:18:40,104 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:18:40,104 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:18:40,104 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:40,105 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:18:40,105 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:40,105 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:40,105 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:18:40,105 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:18:40,105 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:18:40,106 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:18:40,106 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:18:40,106 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:18:40,106 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:18:40,106 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 14:18:40,106 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:40,107 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:18:40,107 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:40,107 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 14:18:40,107 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:18:40,107 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:18:40,107 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:18:40,108 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:18:40,108 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:18:40,108 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:18:41,264 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:18:41,265 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:18:41,272 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:41 BoogieIcfgContainer
[2020-09-25 14:18:41,272 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:18:41,273 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:18:41,273 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:18:41,277 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:18:41,277 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:39" (1/3) ...
[2020-09-25 14:18:41,278 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17140018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:41, skipping insertion in model container
[2020-09-25 14:18:41,279 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:39" (2/3) ...
[2020-09-25 14:18:41,279 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17140018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:41, skipping insertion in model container
[2020-09-25 14:18:41,279 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:41" (3/3) ...
[2020-09-25 14:18:41,281 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c
[2020-09-25 14:18:41,293 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:18:41,304 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:18:41,326 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:18:41,364 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:18:41,364 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:18:41,364 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:18:41,364 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:18:41,365 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:18:41,365 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:18:41,365 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:18:41,365 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:18:41,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 296 states.
[2020-09-25 14:18:41,409 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:18:41,409 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:41,411 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:18:41,411 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:41,419 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:41,419 INFO  L82        PathProgramCache]: Analyzing trace with hash -255597227, now seen corresponding path program 1 times
[2020-09-25 14:18:41,431 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:41,431 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281945500]
[2020-09-25 14:18:41,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:41,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:41,946 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:42,114 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:43,690 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:46,849 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:46,850 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:46,850 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:46,850 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5060
[2020-09-25 14:18:46,854 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:46,855 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:46,855 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 14:18:46,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 14:18:46,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-25 14:18:46,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 14:18:47,338 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:47,344 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:47,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,442 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,685 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,693 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:47,694 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,695 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 282
[2020-09-25 14:18:47,695 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,695 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 14:18:47,696 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,777 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:47,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,783 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,788 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,788 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:47,788 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:18:47,789 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,789 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:47,790 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:47,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,795 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,799 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,799 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:47,799 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,800 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:47,800 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,800 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:47,801 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:47,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,816 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,816 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,816 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,816 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 14:18:47,817 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,817 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:47,818 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,820 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:47,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,822 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,826 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,827 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:47,827 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,827 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:47,828 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,828 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,828 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:47,828 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:47,829 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:47,829 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,831 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:47,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,838 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,838 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,838 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,839 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:47,839 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,839 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:47,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:47,840 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:47,840 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,842 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:47,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,844 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,846 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,847 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,847 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,847 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:47,847 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,847 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:47,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:47,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:47,848 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,850 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:47,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,855 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,858 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:47,858 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:47,858 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:47,859 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:47,859 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:47,859 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:47,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:47,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:47,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:47,861 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:47,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:18:47,909 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281945500]
[2020-09-25 14:18:47,911 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:47,911 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 14:18:47,912 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887392327]
[2020-09-25 14:18:47,921 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 14:18:47,921 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:47,939 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 14:18:47,940 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:18:47,943 INFO  L87              Difference]: Start difference. First operand 296 states. Second operand 5 states.
[2020-09-25 14:18:48,456 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:49,500 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:49,501 INFO  L93              Difference]: Finished difference Result 444 states and 527 transitions.
[2020-09-25 14:18:49,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:49,510 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 153
[2020-09-25 14:18:49,512 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:49,530 INFO  L225             Difference]: With dead ends: 444
[2020-09-25 14:18:49,530 INFO  L226             Difference]: Without dead ends: 279
[2020-09-25 14:18:49,536 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-09-25 14:18:49,558 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2020-09-25 14:18:49,642 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 239.
[2020-09-25 14:18:49,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-25 14:18:49,646 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions.
[2020-09-25 14:18:49,649 INFO  L78                 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 153
[2020-09-25 14:18:49,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:49,650 INFO  L479      AbstractCegarLoop]: Abstraction has 239 states and 256 transitions.
[2020-09-25 14:18:49,650 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 14:18:49,650 INFO  L276                IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions.
[2020-09-25 14:18:49,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 14:18:49,655 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:49,655 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:18:49,656 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:49,656 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:49,656 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:49,656 INFO  L82        PathProgramCache]: Analyzing trace with hash 956433462, now seen corresponding path program 1 times
[2020-09-25 14:18:49,657 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:49,657 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292725434]
[2020-09-25 14:18:49,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:49,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:50,016 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,895 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,896 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 14:18:52,896 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:52,896 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3144
[2020-09-25 14:18:52,897 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,897 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:52,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 14:18:52,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 105
[2020-09-25 14:18:52,899 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,244 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:53,245 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:53,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,310 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,545 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,546 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:53,546 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,546 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 269
[2020-09-25 14:18:53,546 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,547 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 14:18:53,547 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,587 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:53,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,591 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,593 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,594 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,594 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,594 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:53,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,594 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:53,596 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,597 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:53,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,599 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,601 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,601 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,601 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,601 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:53,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,602 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:53,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,604 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:53,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,607 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,614 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,614 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,614 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,615 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:53,615 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,615 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:53,616 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,618 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:53,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,620 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,623 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,623 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,623 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,623 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:53,623 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,624 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:53,624 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,637 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:53,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,640 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,643 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,643 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:18:53,643 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,644 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:53,644 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,644 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,644 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,644 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 14:18:53,645 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,647 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:18:53,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,648 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,650 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:53,650 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,650 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:53,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,651 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:53,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:53,653 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:53,654 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 14:18:53,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,667 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,668 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,668 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,668 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 14:18:53,668 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,669 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:53,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:53,670 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:53,672 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 14:18:53,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,675 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,681 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,681 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,681 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,682 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:18:53,682 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,682 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:53,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:53,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:53,683 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,715 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 14:18:53,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,717 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,719 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:53,719 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:53,719 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:53,719 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:53,720 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:53,720 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:53,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:53,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:53,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:53,721 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:53,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:18:53,756 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292725434]
[2020-09-25 14:18:53,757 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:53,757 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 14:18:53,757 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614293705]
[2020-09-25 14:18:53,759 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 14:18:53,760 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:53,760 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 14:18:53,760 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 14:18:53,760 INFO  L87              Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 10 states.
[2020-09-25 14:18:54,273 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:56,091 WARN  L193               SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 14:18:56,729 WARN  L193               SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 14:18:57,078 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:57,415 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:18:57,750 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:58,252 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:18:58,619 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 14:18:59,025 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:00,326 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:19:00,326 INFO  L93              Difference]: Finished difference Result 602 states and 752 transitions.
[2020-09-25 14:19:00,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 14:19:00,327 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 14:19:00,329 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:19:00,335 INFO  L225             Difference]: With dead ends: 602
[2020-09-25 14:19:00,335 INFO  L226             Difference]: Without dead ends: 449
[2020-09-25 14:19:00,339 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 14:19:00,340 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 449 states.
[2020-09-25 14:19:00,410 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 353.
[2020-09-25 14:19:00,411 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 353 states.
[2020-09-25 14:19:00,439 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 388 transitions.
[2020-09-25 14:19:00,440 INFO  L78                 Accepts]: Start accepts. Automaton has 353 states and 388 transitions. Word has length 162
[2020-09-25 14:19:00,440 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:19:00,441 INFO  L479      AbstractCegarLoop]: Abstraction has 353 states and 388 transitions.
[2020-09-25 14:19:00,441 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 14:19:00,441 INFO  L276                IsEmpty]: Start isEmpty. Operand 353 states and 388 transitions.
[2020-09-25 14:19:00,445 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 14:19:00,446 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:00,446 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:19:00,446 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:19:00,446 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:00,447 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:00,447 INFO  L82        PathProgramCache]: Analyzing trace with hash 1778118102, now seen corresponding path program 1 times
[2020-09-25 14:19:00,447 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:00,448 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966656087]
[2020-09-25 14:19:00,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:00,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:19:00,516 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:19:00,516 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:19:00,521 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:19:00,548 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:00 BoogieIcfgContainer
[2020-09-25 14:19:00,548 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:19:00,551 INFO  L168              Benchmark]: Toolchain (without parser) took 21338.62 ms. Allocated memory was 140.5 MB in the beginning and 548.4 MB in the end (delta: 407.9 MB). Free memory was 102.6 MB in the beginning and 489.2 MB in the end (delta: -386.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,552 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,552 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 700.28 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 174.0 MB in the end (delta: -72.0 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,553 INFO  L168              Benchmark]: Boogie Preprocessor took 92.32 ms. Allocated memory is still 203.9 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,554 INFO  L168              Benchmark]: RCFGBuilder took 1259.14 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 169.9 MB in the beginning and 178.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,555 INFO  L168              Benchmark]: TraceAbstraction took 19275.22 ms. Allocated memory was 235.9 MB in the beginning and 548.4 MB in the end (delta: 312.5 MB). Free memory was 178.1 MB in the beginning and 489.2 MB in the end (delta: -311.1 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:00,559 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 700.28 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 174.0 MB in the end (delta: -72.0 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 92.32 ms. Allocated memory is still 203.9 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1259.14 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 169.9 MB in the beginning and 178.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19275.22 ms. Allocated memory was 235.9 MB in the beginning and 548.4 MB in the end (delta: 312.5 MB). Free memory was 178.1 MB in the beginning and 489.2 MB in the end (delta: -311.1 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L149]              int waterLevel  =    1;
[L150]              int methaneLevelCritical  =    0;
[L407]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L608]              int pumpRunning  =    0;
[L609]              int systemActive  =    1;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L862]              int retValue_acc ;
[L865]              retValue_acc = 1
[L866]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L770]              int splverifierCounter ;
[L771]              int tmp ;
[L772]              int tmp___0 ;
[L773]              int tmp___1 ;
[L774]              int tmp___2 ;
[L777]              splverifierCounter = 0
[L779]  COND TRUE   1
[L781]  COND TRUE   splverifierCounter < 4
[L787]              tmp = __VERIFIER_nondet_int()
[L789]  COND TRUE   \read(tmp)
[L791]  CALL        waterRise()
[L167]  COND TRUE   waterLevel < 2
[L168]              waterLevel = waterLevel + 1
[L791]  RET         waterRise()
[L797]              tmp___0 = __VERIFIER_nondet_int()
[L799]  COND FALSE  !(\read(tmp___0))
[L807]              tmp___2 = __VERIFIER_nondet_int()
[L809]  COND TRUE   \read(tmp___2)
[L811]  CALL        startSystem()
[L764]              systemActive = 1
[L811]  RET         startSystem()
[L824]  CALL        timeShift()
[L616]  COND FALSE  !(\read(pumpRunning))
[L623]  COND TRUE   \read(systemActive)
[L625]  CALL        processEnvironment()
[L645]              int tmp ;
[L648]  COND FALSE  !(\read(pumpRunning))
[L663]  FCALL       processEnvironment__wrappee__base()
[L625]  RET         processEnvironment()
[L631]  CALL        __utac_acc__Specification3_spec__1()
[L873]              int tmp ;
[L874]              int tmp___0 ;
[L875]              int tmp___1 ;
[L879]  CALL, EXPR  isMethaneLevelCritical()
[L188]              int retValue_acc ;
[L191]              retValue_acc = methaneLevelCritical
[L192]              return (retValue_acc);
[L879]  RET, EXPR   isMethaneLevelCritical()
[L879]              tmp = isMethaneLevelCritical()
[L881]  COND FALSE  !(\read(tmp))
[L885]  CALL, EXPR  getWaterLevel()
[L220]              int retValue_acc ;
[L223]              retValue_acc = waterLevel
[L224]              return (retValue_acc);
[L885]  RET, EXPR   getWaterLevel()
[L885]              tmp___0 = getWaterLevel()
[L887]  COND TRUE   tmp___0 == 2
[L889]  CALL, EXPR  isPumpRunning()
[L697]              int retValue_acc ;
[L700]              retValue_acc = pumpRunning
[L701]              return (retValue_acc);
[L889]  RET, EXPR   isPumpRunning()
[L889]              tmp___1 = isPumpRunning()
[L891]  COND FALSE  !(\read(tmp___1))
[L895]  CALL        __automaton_fail()
[L910]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 613 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 468 SDtfs, 848 SDslu, 847 SDs, 0 SdLazy, 1621 SolverSat, 281 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 136 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 143893 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...