/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_product19.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:18:38,677 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:18:38,683 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:18:38,728 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:18:38,728 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:18:38,737 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:18:38,739 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:18:38,743 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:18:38,745 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:18:38,748 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:18:38,749 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:18:38,750 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:18:38,750 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:18:38,753 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:18:38,756 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:18:38,759 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:18:38,760 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:18:38,761 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:18:38,763 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:18:38,771 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:18:38,774 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:18:38,775 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:18:38,776 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:18:38,776 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:18:38,791 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:18:38,792 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:18:38,792 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:18:38,793 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:18:38,793 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:18:38,798 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:18:38,798 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:18:38,799 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:18:38,800 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:18:38,800 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:18:38,802 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:18:38,802 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:18:38,802 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:18:38,803 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:18:38,803 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:18:38,804 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:18:38,805 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:18:38,806 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 14:18:38,829 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:18:38,829 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:18:38,830 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:18:38,831 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:18:38,831 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:18:38,831 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:18:38,831 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:18:38,832 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:18:38,832 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:18:38,832 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:18:38,832 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:18:38,832 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:18:38,833 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:18:38,833 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:18:38,833 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:18:38,833 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:18:38,833 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:18:38,834 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:18:38,834 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:18:38,834 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:18:38,834 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:18:38,835 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:38,835 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:18:38,835 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:18:38,835 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:18:38,835 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:18:38,836 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:18:38,836 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:18:38,836 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:18:38,836 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 14:18:39,304 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:18:39,322 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:18:39,327 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:18:39,329 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:18:39,330 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:18:39,332 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c
[2020-09-25 14:18:39,424 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9bb2ffbd2/8c55b4b2a7a44318beb360f3fb32c0f9/FLAG11528237b
[2020-09-25 14:18:40,081 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:18:40,082 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c
[2020-09-25 14:18:40,097 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9bb2ffbd2/8c55b4b2a7a44318beb360f3fb32c0f9/FLAG11528237b
[2020-09-25 14:18:40,369 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9bb2ffbd2/8c55b4b2a7a44318beb360f3fb32c0f9
[2020-09-25 14:18:40,384 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:18:40,391 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:18:40,395 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:40,395 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:18:40,400 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:18:40,401 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,407 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19257d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40, skipping insertion in model container
[2020-09-25 14:18:40,407 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:40" (1/1) ...
[2020-09-25 14:18:40,418 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:18:40,488 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:18:41,025 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:41,048 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:18:41,145 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:41,183 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:18:41,183 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41 WrapperNode
[2020-09-25 14:18:41,183 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:41,184 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:18:41,185 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:18:41,185 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:18:41,200 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ...
[2020-09-25 14:18:41,200 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ...
[2020-09-25 14:18:41,222 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ...
[2020-09-25 14:18:41,223 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ...
[2020-09-25 14:18:41,254 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ...
[2020-09-25 14:18:41,267 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ...
[2020-09-25 14:18:41,272 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ...
[2020-09-25 14:18:41,280 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:18:41,281 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:18:41,281 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:18:41,281 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:18:41,283 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (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 14:18:41,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:18:41,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:18:41,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:41,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:18:41,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:18:41,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:18:41,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:18:41,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:18:41,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:41,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:41,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:41,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:41,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:18:41,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:18:41,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:18:41,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:18:41,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:18:41,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:18:41,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:18:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:18:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:18:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:18:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:18:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:18:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:18:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:18:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 14:18:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:18:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:18:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:18:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:18:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:18:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:18:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:18:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:18:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 14:18:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 14:18:41,392 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:18:41,392 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:18:41,393 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:18:41,393 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:18:41,393 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:18:41,393 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:18:41,393 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:18:41,394 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:18:41,394 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:18:41,394 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:18:41,394 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:18:41,395 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:41,395 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:18:41,395 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:18:41,395 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:18:41,395 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:41,396 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:18:41,396 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:18:41,396 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:18:41,396 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:18:41,396 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:41,397 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:18:41,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:41,397 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:41,397 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:18:41,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:18:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:18:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:18:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:18:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:18:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:18:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:18:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:18:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:18:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:18:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:18:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:18:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:18:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:18:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:18:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:18:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 14:18:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 14:18:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:18:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:18:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:18:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 14:18:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:18:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:18:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:18:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:18:42,897 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:18:42,898 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:18:42,905 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:42 BoogieIcfgContainer
[2020-09-25 14:18:42,906 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:18:42,907 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:18:42,907 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:18:42,911 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:18:42,911 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:40" (1/3) ...
[2020-09-25 14:18:42,912 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e9978c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:42, skipping insertion in model container
[2020-09-25 14:18:42,912 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (2/3) ...
[2020-09-25 14:18:42,913 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e9978c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:42, skipping insertion in model container
[2020-09-25 14:18:42,913 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:42" (3/3) ...
[2020-09-25 14:18:42,915 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c
[2020-09-25 14:18:42,928 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:18:42,940 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:18:42,959 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:18:42,989 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:18:42,989 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:18:42,989 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:18:42,989 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:18:42,989 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:18:42,990 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:18:42,990 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:18:42,990 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:18:43,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states.
[2020-09-25 14:18:43,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:18:43,036 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:43,037 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 14:18:43,038 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:43,044 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:43,045 INFO  L82        PathProgramCache]: Analyzing trace with hash 2041023672, now seen corresponding path program 1 times
[2020-09-25 14:18:43,054 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:43,055 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60545760]
[2020-09-25 14:18:43,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:43,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:43,561 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:43,831 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:45,375 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:48,431 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:48,431 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:48,431 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:48,432 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 14:18:48,436 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:48,436 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:48,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 14:18:48,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 14:18:48,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-25 14:18:48,437 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 14:18:48,883 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:48,885 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:48,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:48,972 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,208 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,208 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:49,208 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,209 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 279
[2020-09-25 14:18:49,209 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,209 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:49,210 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:49,210 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 14:18:49,210 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:49,278 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:49,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,286 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,286 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:49,286 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,286 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:49,287 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,287 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:49,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:49,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:49,288 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:49,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:49,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,293 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,296 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,297 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:49,297 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,297 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:49,297 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,298 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:49,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:49,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:49,298 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:49,300 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:49,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,304 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,313 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,313 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:49,313 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,314 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 14:18:49,314 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,314 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:49,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:49,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:49,315 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:49,317 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:49,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,320 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,324 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,324 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:49,324 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,324 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:49,325 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,325 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:49,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:49,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:49,326 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:49,328 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:49,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,330 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,333 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,333 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:49,334 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,334 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:49,334 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,334 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:49,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:49,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:49,335 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:49,337 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:49,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,340 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,342 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:49,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:49,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,343 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:49,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:49,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:49,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:49,346 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:49,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:49,376 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:49,382 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:49,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:49,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:49,383 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 34
[2020-09-25 14:18:49,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:49,383 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:49,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:49,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:49,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:49,388 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 14:18:49,429 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 14:18:49,430 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60545760]
[2020-09-25 14:18:49,433 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:49,433 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 14:18:49,434 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015940112]
[2020-09-25 14:18:49,444 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 14:18:49,444 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:49,467 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 14:18:49,468 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:18:49,472 INFO  L87              Difference]: Start difference. First operand 298 states. Second operand 5 states.
[2020-09-25 14:18:50,069 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:50,910 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 14:18:53,365 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:53,366 INFO  L93              Difference]: Finished difference Result 734 states and 914 transitions.
[2020-09-25 14:18:53,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 14:18:53,369 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 153
[2020-09-25 14:18:53,370 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:53,393 INFO  L225             Difference]: With dead ends: 734
[2020-09-25 14:18:53,394 INFO  L226             Difference]: Without dead ends: 539
[2020-09-25 14:18:53,400 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 14:18:53,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 539 states.
[2020-09-25 14:18:53,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 457.
[2020-09-25 14:18:53,569 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 457 states.
[2020-09-25 14:18:53,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 517 transitions.
[2020-09-25 14:18:53,575 INFO  L78                 Accepts]: Start accepts. Automaton has 457 states and 517 transitions. Word has length 153
[2020-09-25 14:18:53,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:53,577 INFO  L479      AbstractCegarLoop]: Abstraction has 457 states and 517 transitions.
[2020-09-25 14:18:53,577 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 14:18:53,577 INFO  L276                IsEmpty]: Start isEmpty. Operand 457 states and 517 transitions.
[2020-09-25 14:18:53,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 14:18:53,583 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:53,583 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 14:18:53,584 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:53,584 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:53,584 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:53,584 INFO  L82        PathProgramCache]: Analyzing trace with hash 457953332, now seen corresponding path program 1 times
[2020-09-25 14:18:53,585 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:53,585 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750143826]
[2020-09-25 14:18:53,585 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:53,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:53,695 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:53,922 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:56,873 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:56,873 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 14:18:56,874 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:56,874 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3230
[2020-09-25 14:18:56,874 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:56,874 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:56,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:56,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 14:18:56,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 104
[2020-09-25 14:18:56,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,247 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:57,248 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:57,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,330 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,528 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,528 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:57,529 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,529 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 243
[2020-09-25 14:18:57,529 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,529 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,529 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:57,530 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,530 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 14:18:57,530 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,573 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:57,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,580 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,580 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:57,580 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,581 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:57,581 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,581 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:57,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:57,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,584 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:57,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,586 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,589 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,590 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:57,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,590 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:57,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,591 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:57,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:57,592 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,594 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:57,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,597 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,604 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,605 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:57,605 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,605 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:57,605 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,606 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:57,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:57,607 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,609 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:57,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,615 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,615 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:57,615 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,616 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:57,616 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,616 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:57,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:57,618 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,631 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:57,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,634 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,638 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,638 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:18:57,638 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,638 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:57,639 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,639 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:57,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,640 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 14:18:57,640 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,642 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:18:57,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,644 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,645 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,646 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:57,646 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,646 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 14:18:57,646 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,647 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:57,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:57,649 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:57,650 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 14:18:57,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,653 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,656 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,656 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:57,657 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,657 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:57,657 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,657 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:57,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:57,661 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 14:18:57,672 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 14:18:57,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,675 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,681 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,682 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:57,682 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,682 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:18:57,682 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,683 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:57,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:57,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:57,683 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,719 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 14:18:57,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:57,722 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:57,726 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:57,726 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:57,727 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:57,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:57,727 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:57,727 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:57,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:57,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:57,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:57,728 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:57,766 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 14:18:57,767 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750143826]
[2020-09-25 14:18:57,768 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:57,768 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 14:18:57,768 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79365595]
[2020-09-25 14:18:57,772 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 14:18:57,772 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:57,773 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 14:18:57,773 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 14:18:57,774 INFO  L87              Difference]: Start difference. First operand 457 states and 517 transitions. Second operand 10 states.
[2020-09-25 14:18:58,323 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:19:00,383 WARN  L193               SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 14:19:01,017 WARN  L193               SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 14:19:01,439 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:01,790 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:19:02,117 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:02,616 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:19:02,979 WARN  L193               SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 14:19:03,412 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:04,783 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:19:04,784 INFO  L93              Difference]: Finished difference Result 1408 states and 1882 transitions.
[2020-09-25 14:19:04,784 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 14:19:04,785 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 14:19:04,786 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:19:04,799 INFO  L225             Difference]: With dead ends: 1408
[2020-09-25 14:19:04,799 INFO  L226             Difference]: Without dead ends: 997
[2020-09-25 14:19:04,806 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 14:19:04,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 997 states.
[2020-09-25 14:19:05,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 762.
[2020-09-25 14:19:05,002 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 762 states.
[2020-09-25 14:19:05,008 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 882 transitions.
[2020-09-25 14:19:05,009 INFO  L78                 Accepts]: Start accepts. Automaton has 762 states and 882 transitions. Word has length 162
[2020-09-25 14:19:05,010 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:19:05,010 INFO  L479      AbstractCegarLoop]: Abstraction has 762 states and 882 transitions.
[2020-09-25 14:19:05,010 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 14:19:05,011 INFO  L276                IsEmpty]: Start isEmpty. Operand 762 states and 882 transitions.
[2020-09-25 14:19:05,022 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 14:19:05,023 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:05,023 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]
[2020-09-25 14:19:05,024 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:19:05,024 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:05,024 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:05,024 INFO  L82        PathProgramCache]: Analyzing trace with hash 466047794, now seen corresponding path program 1 times
[2020-09-25 14:19:05,024 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:05,025 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47040185]
[2020-09-25 14:19:05,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:05,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:19:05,102 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:19:05,102 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:19:05,108 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:19:05,136 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:05 BoogieIcfgContainer
[2020-09-25 14:19:05,136 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:19:05,138 INFO  L168              Benchmark]: Toolchain (without parser) took 24751.67 ms. Allocated memory was 140.5 MB in the beginning and 526.9 MB in the end (delta: 386.4 MB). Free memory was 101.9 MB in the beginning and 426.7 MB in the end (delta: -324.8 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,139 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,140 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 788.99 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 171.3 MB in the end (delta: -69.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,141 INFO  L168              Benchmark]: Boogie Preprocessor took 96.28 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 166.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,142 INFO  L168              Benchmark]: RCFGBuilder took 1624.67 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 166.5 MB in the beginning and 176.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,143 INFO  L168              Benchmark]: TraceAbstraction took 22229.04 ms. Allocated memory was 235.9 MB in the beginning and 526.9 MB in the end (delta: 291.0 MB). Free memory was 174.4 MB in the beginning and 426.7 MB in the end (delta: -252.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,147 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 788.99 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 171.3 MB in the end (delta: -69.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.28 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 166.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1624.67 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 166.5 MB in the beginning and 176.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 22229.04 ms. Allocated memory was 235.9 MB in the beginning and 526.9 MB in the end (delta: 291.0 MB). Free memory was 174.4 MB in the beginning and 426.7 MB in the end (delta: -252.3 MB). Peak memory consumption was 38.6 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: 
[L293]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L490]              int cleanupTimeShifts  =    4;
[L594]              int waterLevel  =    1;
[L595]              int methaneLevelCritical  =    0;
[L753]              int pumpRunning  =    0;
[L754]              int systemActive  =    1;
[L568]              int retValue_acc ;
[L569]              int tmp ;
[L573]  FCALL       select_helpers()
[L574]  FCALL       select_features()
[L575]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L575]  RET, EXPR   valid_product()
[L575]              tmp = valid_product()
[L577]  COND TRUE   \read(tmp)
[L579]  FCALL       setup()
[L580]  CALL        runTest()
[L562]  CALL        test()
[L685]              int splverifierCounter ;
[L686]              int tmp ;
[L687]              int tmp___0 ;
[L688]              int tmp___1 ;
[L689]              int tmp___2 ;
[L692]              splverifierCounter = 0
[L694]  COND TRUE   1
[L696]  COND TRUE   splverifierCounter < 4
[L702]              tmp = __VERIFIER_nondet_int()
[L704]  COND TRUE   \read(tmp)
[L706]  CALL        waterRise()
[L612]  COND TRUE   waterLevel < 2
[L613]              waterLevel = waterLevel + 1
[L706]  RET         waterRise()
[L712]              tmp___0 = __VERIFIER_nondet_int()
[L714]  COND FALSE  !(\read(tmp___0))
[L722]              tmp___2 = __VERIFIER_nondet_int()
[L724]  COND TRUE   \read(tmp___2)
[L739]  CALL        timeShift()
[L760]  COND FALSE  !(\read(pumpRunning))
[L767]  COND TRUE   \read(systemActive)
[L769]  CALL        processEnvironment()
[L789]              int tmp ;
[L792]  COND FALSE  !(\read(pumpRunning))
[L807]  FCALL       processEnvironment__wrappee__base()
[L769]  RET         processEnvironment()
[L775]  CALL        __utac_acc__Specification3_spec__1()
[L91]               int tmp ;
[L92]               int tmp___0 ;
[L93]               int tmp___1 ;
[L97]   CALL, EXPR  isMethaneLevelCritical()
[L633]              int retValue_acc ;
[L636]              retValue_acc = methaneLevelCritical
[L637]              return (retValue_acc);
[L97]   RET, EXPR   isMethaneLevelCritical()
[L97]               tmp = isMethaneLevelCritical()
[L99]   COND FALSE  !(\read(tmp))
[L103]  CALL, EXPR  getWaterLevel()
[L665]              int retValue_acc ;
[L668]              retValue_acc = waterLevel
[L669]              return (retValue_acc);
[L103]  RET, EXPR   getWaterLevel()
[L103]              tmp___0 = getWaterLevel()
[L105]  COND TRUE   tmp___0 == 2
[L107]  CALL, EXPR  isPumpRunning()
[L841]              int retValue_acc ;
[L844]              retValue_acc = pumpRunning
[L845]              return (retValue_acc);
[L107]  RET, EXPR   isPumpRunning()
[L107]              tmp___1 = isPumpRunning()
[L109]  COND FALSE  !(\read(tmp___1))
[L113]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 483 SDtfs, 1119 SDslu, 952 SDs, 0 SdLazy, 2046 SolverSat, 362 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred 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, 317 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 143571 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...