/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=0.2 --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_product24.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:56:30,851 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:56:30,855 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:56:30,904 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:56:30,905 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:56:30,912 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:56:30,915 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:56:30,919 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:56:30,922 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:56:30,925 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-09-25 10:56:30,928 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:56:30,928 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:56:30,931 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:56:30,935 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:56:30,938 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:56:30,940 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:56:30,941 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:56:30,943 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:56:30,951 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:56:30,953 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:56:30,955 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:56:30,956 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:56:30,956 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:56:30,969 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:56:30,969 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:56:30,969 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:56:30,975 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:56:30,976 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:56:30,980 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:56:30,980 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:56:30,981 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:56:30,982 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:56:30,983 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:56:30,984 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:56:30,984 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:56:30,988 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:56:30,988 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:56:30,988 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:56:30,989 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:56:30,990 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:56:30,991 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 10:56:31,033 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:56:31,033 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:56:31,035 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:56:31,035 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:56:31,035 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:56:31,036 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:56:31,036 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:56:31,036 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:56:31,036 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:56:31,037 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:56:31,038 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:56:31,038 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:56:31,038 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:56:31,039 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:56:31,039 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:56:31,039 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:56:31,039 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:56:31,040 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:56:31,040 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:56:31,040 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:56:31,040 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:56:31,041 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:56:31,041 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:56:31,041 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:56:31,041 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:56:31,041 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:56:31,042 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:56:31,042 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:56:31,042 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:56:31,042 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true;
[2020-09-25 10:56:31,508 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:56:31,531 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:56:31,538 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:56:31,540 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:56:31,541 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:56:31,542 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c
[2020-09-25 10:56:31,618 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88efe3304/e39a9821da064d74864c95713506c400/FLAG9b200661b
[2020-09-25 10:56:32,243 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:56:32,244 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c
[2020-09-25 10:56:32,259 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88efe3304/e39a9821da064d74864c95713506c400/FLAG9b200661b
[2020-09-25 10:56:32,496 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88efe3304/e39a9821da064d74864c95713506c400
[2020-09-25 10:56:32,511 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:56:32,515 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:56:32,516 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:32,517 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:56:32,521 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:56:32,522 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:32" (1/1) ...
[2020-09-25 10:56:32,527 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:32, skipping insertion in model container
[2020-09-25 10:56:32,527 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:32" (1/1) ...
[2020-09-25 10:56:32,536 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:56:32,588 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:56:33,036 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:33,058 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:56:33,149 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:33,187 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:56:33,190 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33 WrapperNode
[2020-09-25 10:56:33,190 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:33,191 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:56:33,192 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:56:33,192 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:56:33,206 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,207 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,229 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,230 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,265 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,278 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,284 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,292 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:56:33,293 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:56:33,293 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:56:33,293 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:56:33,297 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:56:33,382 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:56:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:56:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:56:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:56:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:33,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 10:56:33,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:56:33,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:56:33,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:56:33,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:56:33,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:56:33,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:56:33,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:56:33,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:56:33,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 10:56:33,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:56:33,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:33,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:56:33,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:56:33,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:56:33,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:56:33,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:56:33,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:33,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:33,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:33,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:56:33,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:56:33,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:56:33,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:56:33,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:56:33,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:56:33,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:56:33,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:56:33,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:56:33,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:56:33,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:56:33,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:56:33,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:56:33,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:56:33,390 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:56:33,390 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:56:33,390 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:56:33,390 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:56:33,391 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:56:33,391 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:56:33,391 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:56:33,391 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:56:33,391 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:56:33,391 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:56:33,392 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:56:33,392 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:56:33,392 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:56:33,392 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:56:33,392 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 10:56:33,392 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:33,393 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:56:33,393 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:33,393 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:56:33,393 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 10:56:33,393 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:56:33,393 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:56:33,394 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:56:33,394 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:56:33,394 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:56:33,394 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:56:33,394 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:56:33,394 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:56:33,395 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:56:33,395 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:56:33,395 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:56:33,395 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:56:33,395 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:56:33,395 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:56:33,396 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:56:33,396 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:56:33,396 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:56:33,396 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:33,396 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:56:33,396 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:56:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:56:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:56:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:56:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:56:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:56:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:56:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:56:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:56:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:56:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:56:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:56:34,640 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:56:34,641 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:56:34,650 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:34 BoogieIcfgContainer
[2020-09-25 10:56:34,650 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:56:34,651 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:56:34,652 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:56:34,656 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:56:34,656 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:32" (1/3) ...
[2020-09-25 10:56:34,657 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b95cf42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:34, skipping insertion in model container
[2020-09-25 10:56:34,657 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33" (2/3) ...
[2020-09-25 10:56:34,658 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b95cf42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:34, skipping insertion in model container
[2020-09-25 10:56:34,658 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:34" (3/3) ...
[2020-09-25 10:56:34,660 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c
[2020-09-25 10:56:34,672 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:56:34,684 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:56:34,705 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:56:34,740 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:56:34,741 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:56:34,741 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:56:34,741 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:56:34,741 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:56:34,741 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:56:34,741 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:56:34,742 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:56:34,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 316 states.
[2020-09-25 10:56:34,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:56:34,794 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:34,795 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 10:56:34,796 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:34,804 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:34,805 INFO  L82        PathProgramCache]: Analyzing trace with hash -1912594641, now seen corresponding path program 1 times
[2020-09-25 10:56:34,814 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:34,815 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491691566]
[2020-09-25 10:56:34,815 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:35,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,290 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,520 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:37,109 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:40,179 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:40,179 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:56:40,179 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:40,180 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5019
[2020-09-25 10:56:40,184 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:40,184 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:40,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:56:40,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 10:56:40,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 10:56:40,185 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 10:56:40,679 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:40,687 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:40,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:40,776 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,056 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,056 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:41,056 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,057 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 321
[2020-09-25 10:56:41,057 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,057 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:41,058 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:41,058 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 10:56:41,058 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,128 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:41,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:41,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,134 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:41,135 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:41,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,135 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:41,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:41,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:41,136 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,139 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:41,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:41,141 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,145 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,145 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:41,145 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,146 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:41,146 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,146 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:41,147 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:41,147 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:41,147 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,149 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:41,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:41,152 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,158 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,159 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:41,159 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,159 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:41,160 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,160 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:41,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:41,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:41,161 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,163 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:41,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:41,166 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,169 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,170 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:41,170 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,170 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:41,170 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,170 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:41,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:41,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:41,171 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,173 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:56:41,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:41,176 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,180 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,180 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:41,180 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,180 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:41,181 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,181 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,181 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:41,181 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:41,182 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:41,182 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,184 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:56:41,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:41,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,197 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,197 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:41,197 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,197 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:56:41,198 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,198 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,198 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:56:41,198 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:41,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:41,199 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,226 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:56:41,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:41,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,232 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:41,232 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:41,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:41,233 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,233 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:41,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:41,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:41,234 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:41,273 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 10:56:41,274 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491691566]
[2020-09-25 10:56:41,277 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:41,277 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:56:41,279 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316426132]
[2020-09-25 10:56:41,286 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:56:41,287 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:41,306 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:56:41,307 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:56:41,310 INFO  L87              Difference]: Start difference. First operand 316 states. Second operand 8 states.
[2020-09-25 10:56:41,923 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:43,789 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:44,179 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:44,561 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:44,947 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:45,268 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:45,577 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:45,893 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:47,443 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:47,444 INFO  L93              Difference]: Finished difference Result 668 states and 824 transitions.
[2020-09-25 10:56:47,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:56:47,446 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:56:47,447 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:47,479 INFO  L225             Difference]: With dead ends: 668
[2020-09-25 10:56:47,486 INFO  L226             Difference]: Without dead ends: 463
[2020-09-25 10:56:47,496 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 10:56:47,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 463 states.
[2020-09-25 10:56:47,646 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 414.
[2020-09-25 10:56:47,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 414 states.
[2020-09-25 10:56:47,651 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 473 transitions.
[2020-09-25 10:56:47,654 INFO  L78                 Accepts]: Start accepts. Automaton has 414 states and 473 transitions. Word has length 153
[2020-09-25 10:56:47,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:47,658 INFO  L479      AbstractCegarLoop]: Abstraction has 414 states and 473 transitions.
[2020-09-25 10:56:47,658 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:56:47,659 INFO  L276                IsEmpty]: Start isEmpty. Operand 414 states and 473 transitions.
[2020-09-25 10:56:47,667 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 10:56:47,667 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:47,668 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 10:56:47,668 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:56:47,668 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:47,669 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:47,669 INFO  L82        PathProgramCache]: Analyzing trace with hash -499582659, now seen corresponding path program 1 times
[2020-09-25 10:56:47,669 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:47,669 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474566905]
[2020-09-25 10:56:47,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:47,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:47,799 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:47,910 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,050 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:52,745 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:52,745 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 10:56:52,745 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:52,745 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5011
[2020-09-25 10:56:52,746 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:52,746 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:52,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 10:56:52,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 10:56:52,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 70
[2020-09-25 10:56:52,747 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:53,044 WARN  L193               SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:53,045 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:53,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,119 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,319 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,319 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:53,319 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 237
[2020-09-25 10:56:53,320 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,320 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:53,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:53,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 10:56:53,321 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:53,370 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:53,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,372 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,375 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,375 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:53,375 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,376 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:53,376 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,376 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,376 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:53,376 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:53,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:53,377 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:53,378 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:53,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,380 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,382 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:53,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,383 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:53,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,383 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:53,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:53,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:53,384 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:53,385 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:53,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,388 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,393 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:53,394 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,394 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 10:56:53,394 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,395 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:53,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:53,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:53,395 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:53,397 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:53,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,399 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,402 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:53,402 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,403 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:53,403 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,403 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:53,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:53,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:53,404 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:53,414 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 10:56:53,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,417 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,424 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,425 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:56:53,425 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,425 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:56:53,426 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,426 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:53,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:53,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:56:53,427 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:53,429 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 10:56:53,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,431 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,432 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,433 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:53,433 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,433 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:53,433 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,433 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:53,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:53,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:53,434 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:53,435 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 10:56:53,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,438 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,439 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,439 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:53,440 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,440 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:53,440 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,440 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,441 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:53,441 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:53,441 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:53,441 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:53,442 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 10:56:53,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:53,444 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:53,446 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:53,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:53,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:53,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:53,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:53,447 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:53,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:53,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:53,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:53,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:53,477 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 10:56:53,477 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474566905]
[2020-09-25 10:56:53,478 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:53,478 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 10:56:53,478 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223398999]
[2020-09-25 10:56:53,480 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 10:56:53,481 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:53,481 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 10:56:53,481 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 10:56:53,482 INFO  L87              Difference]: Start difference. First operand 414 states and 473 transitions. Second operand 6 states.
[2020-09-25 10:56:54,031 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:54,943 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 10:56:57,965 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:57,966 INFO  L93              Difference]: Finished difference Result 1289 states and 1615 transitions.
[2020-09-25 10:56:57,966 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 10:56:57,966 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 159
[2020-09-25 10:56:57,967 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:57,978 INFO  L225             Difference]: With dead ends: 1289
[2020-09-25 10:56:57,978 INFO  L226             Difference]: Without dead ends: 985
[2020-09-25 10:56:57,983 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-25 10:56:57,985 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 985 states.
[2020-09-25 10:56:58,167 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 867.
[2020-09-25 10:56:58,167 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 867 states.
[2020-09-25 10:56:58,174 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1029 transitions.
[2020-09-25 10:56:58,175 INFO  L78                 Accepts]: Start accepts. Automaton has 867 states and 1029 transitions. Word has length 159
[2020-09-25 10:56:58,175 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:58,175 INFO  L479      AbstractCegarLoop]: Abstraction has 867 states and 1029 transitions.
[2020-09-25 10:56:58,176 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 10:56:58,176 INFO  L276                IsEmpty]: Start isEmpty. Operand 867 states and 1029 transitions.
[2020-09-25 10:56:58,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-25 10:56:58,182 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:58,182 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, 1, 1, 1, 1, 1]
[2020-09-25 10:56:58,182 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:56:58,183 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:58,183 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:58,183 INFO  L82        PathProgramCache]: Analyzing trace with hash 144516370, now seen corresponding path program 1 times
[2020-09-25 10:56:58,183 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:58,184 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790684075]
[2020-09-25 10:56:58,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:58,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:56:58,255 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:56:58,255 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:56:58,261 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:56:58,293 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:58 BoogieIcfgContainer
[2020-09-25 10:56:58,293 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:56:58,295 INFO  L168              Benchmark]: Toolchain (without parser) took 25782.51 ms. Allocated memory was 148.9 MB in the beginning and 547.4 MB in the end (delta: 398.5 MB). Free memory was 104.2 MB in the beginning and 424.7 MB in the end (delta: -320.5 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:58,296 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 148.9 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 10:56:58,297 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 674.60 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 172.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:58,298 INFO  L168              Benchmark]: Boogie Preprocessor took 101.10 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 168.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:58,299 INFO  L168              Benchmark]: RCFGBuilder took 1357.50 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 168.3 MB in the beginning and 168.5 MB in the end (delta: -212.0 kB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:58,300 INFO  L168              Benchmark]: TraceAbstraction took 23641.46 ms. Allocated memory was 234.4 MB in the beginning and 547.4 MB in the end (delta: 313.0 MB). Free memory was 168.5 MB in the beginning and 424.7 MB in the end (delta: -256.2 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:58,304 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 148.9 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 674.60 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 172.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 101.10 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 168.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1357.50 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 168.3 MB in the beginning and 168.5 MB in the end (delta: -212.0 kB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 23641.46 ms. Allocated memory was 234.4 MB in the beginning and 547.4 MB in the end (delta: 313.0 MB). Free memory was 168.5 MB in the beginning and 424.7 MB in the end (delta: -256.2 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L60]               int pumpRunning  =    0;
[L61]               int systemActive  =    1;
[L369]              int cleanupTimeShifts  =    4;
[L637]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L834]              int waterLevel  =    1;
[L835]              int methaneLevelCritical  =    0;
[L445]              int retValue_acc ;
[L446]              int tmp ;
[L450]  FCALL       select_helpers()
[L451]  FCALL       select_features()
[L452]  CALL, EXPR  valid_product()
[L949]              int retValue_acc ;
[L952]              retValue_acc = 1
[L953]              return (retValue_acc);
[L452]  RET, EXPR   valid_product()
[L452]              tmp = valid_product()
[L454]  COND TRUE   \read(tmp)
[L456]  FCALL       setup()
[L457]  CALL        runTest()
[L436]  CALL        test()
[L266]              int splverifierCounter ;
[L267]              int tmp ;
[L268]              int tmp___0 ;
[L269]              int tmp___1 ;
[L270]              int tmp___2 ;
[L273]              splverifierCounter = 0
[L275]  COND TRUE   1
[L277]  COND TRUE   splverifierCounter < 4
[L283]              tmp = __VERIFIER_nondet_int()
[L285]  COND TRUE   \read(tmp)
[L287]  CALL        waterRise()
[L852]  COND TRUE   waterLevel < 2
[L853]              waterLevel = waterLevel + 1
[L287]  RET         waterRise()
[L293]              tmp___0 = __VERIFIER_nondet_int()
[L295]  COND FALSE  !(\read(tmp___0))
[L303]              tmp___2 = __VERIFIER_nondet_int()
[L305]  COND TRUE   \read(tmp___2)
[L307]  CALL        startSystem()
[L257]              systemActive = 1
[L307]  RET         startSystem()
[L322]  CALL        timeShift()
[L68]   COND FALSE  !(\read(pumpRunning))
[L75]   COND TRUE   \read(systemActive)
[L77]   CALL        processEnvironment()
[L123]              int tmp ;
[L126]  COND FALSE  !(\read(pumpRunning))
[L141]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L97]               int tmp ;
[L100]  COND FALSE  !(\read(pumpRunning))
[L115]  FCALL       processEnvironment__wrappee__base()
[L141]  RET         processEnvironment__wrappee__lowWaterSensor()
[L77]   RET         processEnvironment()
[L83]   CALL        __utac_acc__Specification3_spec__1()
[L336]              int tmp ;
[L337]              int tmp___0 ;
[L338]              int tmp___1 ;
[L342]  CALL, EXPR  isMethaneLevelCritical()
[L873]              int retValue_acc ;
[L876]              retValue_acc = methaneLevelCritical
[L877]              return (retValue_acc);
[L342]  RET, EXPR   isMethaneLevelCritical()
[L342]              tmp = isMethaneLevelCritical()
[L344]  COND FALSE  !(\read(tmp))
[L348]  CALL, EXPR  getWaterLevel()
[L905]              int retValue_acc ;
[L908]              retValue_acc = waterLevel
[L909]              return (retValue_acc);
[L348]  RET, EXPR   getWaterLevel()
[L348]              tmp___0 = getWaterLevel()
[L350]  COND TRUE   tmp___0 == 2
[L352]  CALL, EXPR  isPumpRunning()
[L175]              int retValue_acc ;
[L178]              retValue_acc = pumpRunning
[L179]              return (retValue_acc);
[L352]  RET, EXPR   isPumpRunning()
[L352]              tmp___1 = isPumpRunning()
[L354]  COND FALSE  !(\read(tmp___1))
[L358]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 563 SDtfs, 1144 SDslu, 928 SDs, 0 SdLazy, 2102 SolverSat, 429 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 167 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 134266 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...