/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_product60.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:57:38,077 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:57:38,082 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:57:38,129 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:57:38,129 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:57:38,131 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:57:38,132 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:57:38,134 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:57:38,136 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:57:38,137 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:57:38,138 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:57:38,140 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:57:38,140 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:57:38,141 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:57:38,143 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:57:38,144 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:57:38,145 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:57:38,146 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:57:38,148 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:57:38,150 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:57:38,155 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:57:38,157 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:57:38,160 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:57:38,161 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:57:38,164 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:57:38,164 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:57:38,169 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:57:38,171 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:57:38,171 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:57:38,175 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:57:38,176 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:57:38,177 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:57:38,178 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:57:38,180 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:57:38,182 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:57:38,182 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:57:38,183 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:57:38,183 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:57:38,183 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:57:38,184 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:57:38,186 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:57:38,187 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 10:57:38,238 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:57:38,238 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:57:38,241 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:57:38,241 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:57:38,241 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:57:38,242 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:57:38,242 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:57:38,242 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:57:38,242 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:57:38,243 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:57:38,244 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:57:38,244 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:57:38,244 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:57:38,245 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:57:38,245 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:57:38,245 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:57:38,245 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:57:38,246 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:57:38,246 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:57:38,246 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:57:38,246 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:57:38,246 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:57:38,247 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:57:38,247 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:57:38,247 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:57:38,247 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:57:38,247 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:57:38,248 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:57:38,248 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:57:38,248 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 10:57:38,724 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:57:38,748 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:57:38,753 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:57:38,755 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:57:38,755 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:57:38,756 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c
[2020-09-25 10:57:38,835 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ec309cd8/a19e638c1d034de99e067ce9624b10aa/FLAG7d7919192
[2020-09-25 10:57:39,374 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:57:39,374 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c
[2020-09-25 10:57:39,391 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ec309cd8/a19e638c1d034de99e067ce9624b10aa/FLAG7d7919192
[2020-09-25 10:57:39,658 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ec309cd8/a19e638c1d034de99e067ce9624b10aa
[2020-09-25 10:57:39,672 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:57:39,678 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:57:39,682 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:57:39,682 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:57:39,686 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:57:39,687 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,693 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39, skipping insertion in model container
[2020-09-25 10:57:39,693 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,703 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:57:39,784 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:57:40,319 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:57:40,336 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:57:40,415 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:57:40,457 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:57:40,458 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40 WrapperNode
[2020-09-25 10:57:40,458 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:57:40,459 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:57:40,459 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:57:40,460 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:57:40,474 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (1/1) ...
[2020-09-25 10:57:40,475 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (1/1) ...
[2020-09-25 10:57:40,498 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (1/1) ...
[2020-09-25 10:57:40,499 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (1/1) ...
[2020-09-25 10:57:40,529 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (1/1) ...
[2020-09-25 10:57:40,541 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (1/1) ...
[2020-09-25 10:57:40,547 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (1/1) ...
[2020-09-25 10:57:40,555 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:57:40,556 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:57:40,556 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:57:40,556 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:57:40,558 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (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 10:57:40,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:57:40,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:57:40,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:57:40,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:57:40,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:57:40,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:57:40,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:57:40,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:57:40,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:57:40,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:57:40,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:57:40,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:57:40,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:57:40,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:57:40,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 10:57:40,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:57:40,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:57:40,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 10:57:40,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:57:40,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:57:40,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:57:40,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:57:40,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:57:40,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:57:40,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:57:40,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:57:40,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:57:40,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:57:40,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:57:40,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:57:40,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:57:40,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:57:40,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:57:40,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:57:40,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:57:40,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:57:40,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 10:57:40,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:57:40,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:57:40,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:57:40,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:57:40,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:57:40,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:57:40,661 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:57:40,661 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:57:40,661 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:57:40,661 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:57:40,662 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:57:40,662 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 10:57:40,662 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:57:40,662 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:57:40,662 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:57:40,663 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:57:40,663 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:57:40,663 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:57:40,663 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:57:40,663 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 10:57:40,663 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:57:40,664 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:57:40,664 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:57:40,664 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:57:40,664 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:57:40,664 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:57:40,664 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:57:40,665 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:57:40,665 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 10:57:40,665 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:57:40,665 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:57:40,665 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:57:40,665 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:57:40,666 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:57:40,666 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:57:40,666 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:57:40,666 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:57:40,666 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:57:40,666 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:57:40,667 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:57:40,667 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:57:40,667 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:57:40,667 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:57:40,667 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:57:40,668 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:57:40,668 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:57:40,668 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:57:40,668 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:57:40,668 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:57:40,668 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:57:40,669 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:57:40,669 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:57:40,669 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:57:40,669 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:57:40,669 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:57:40,669 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:57:40,670 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:57:40,670 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:57:40,670 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:57:40,670 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:57:40,670 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:57:40,670 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:57:40,671 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:57:41,907 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:57:41,907 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:57:41,919 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:41 BoogieIcfgContainer
[2020-09-25 10:57:41,919 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:57:41,920 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:57:41,921 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:57:41,926 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:57:41,927 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:57:39" (1/3) ...
[2020-09-25 10:57:41,928 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3958deda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:41, skipping insertion in model container
[2020-09-25 10:57:41,928 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:40" (2/3) ...
[2020-09-25 10:57:41,929 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3958deda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:41, skipping insertion in model container
[2020-09-25 10:57:41,929 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:41" (3/3) ...
[2020-09-25 10:57:41,932 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c
[2020-09-25 10:57:41,945 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:57:41,960 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:57:41,984 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:57:42,015 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:57:42,015 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:57:42,015 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:57:42,015 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:57:42,016 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:57:42,016 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:57:42,016 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:57:42,016 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:57:42,044 INFO  L276                IsEmpty]: Start isEmpty. Operand 350 states.
[2020-09-25 10:57:42,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:57:42,064 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:57:42,065 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 10:57:42,066 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:57:42,074 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:57:42,074 INFO  L82        PathProgramCache]: Analyzing trace with hash 179280132, now seen corresponding path program 1 times
[2020-09-25 10:57:42,086 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:57:42,086 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949552834]
[2020-09-25 10:57:42,087 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:57:42,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:42,583 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:42,833 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:44,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,463 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,464 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:57:47,464 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:57:47,465 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5035
[2020-09-25 10:57:47,469 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,480 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:57:47,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 10:57:47,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-25 10:57:47,484 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 18
[2020-09-25 10:57:48,052 WARN  L193               SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:57:48,055 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:57:48,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,155 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,402 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:57:48,403 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,403 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 290
[2020-09-25 10:57:48,403 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,403 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:48,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:48,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 10:57:48,405 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,472 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:57:48,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,475 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,478 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:48,479 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,479 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:48,479 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,480 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:48,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:48,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:48,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,483 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:57:48,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,489 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,490 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:48,490 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,490 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:57:48,490 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,491 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:48,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:48,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:48,492 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,493 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:57:48,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,497 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,506 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,506 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:48,506 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,507 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:57:48,507 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,507 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:48,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:48,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:48,508 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,510 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:57:48,511 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,513 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,516 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,517 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:48,517 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,517 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:48,518 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,518 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:48,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:48,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:48,519 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,520 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:57:48,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,526 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,530 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,531 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:48,561 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,562 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:57:48,562 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,562 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:48,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:48,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:48,563 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,569 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:57:48,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,575 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,589 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,589 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:48,589 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,590 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 10:57:48,590 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,590 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:57:48,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:48,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:48,591 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,626 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:57:48,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:48,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:48,633 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:48,633 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:48,633 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:48,633 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:57:48,634 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:48,634 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:48,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:48,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:48,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:48,635 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:48,676 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 10:57:48,677 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949552834]
[2020-09-25 10:57:48,684 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:57:48,685 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:57:48,686 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477227494]
[2020-09-25 10:57:48,697 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:57:48,698 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:57:48,716 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:57:48,717 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:57:48,719 INFO  L87              Difference]: Start difference. First operand 350 states. Second operand 8 states.
[2020-09-25 10:57:49,385 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:57:50,935 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:51,250 WARN  L193               SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:57:51,665 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:52,119 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:57:52,460 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:53,370 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:57:53,695 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:55,519 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:57:55,520 INFO  L93              Difference]: Finished difference Result 773 states and 956 transitions.
[2020-09-25 10:57:55,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:57:55,524 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:57:55,524 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:57:55,546 INFO  L225             Difference]: With dead ends: 773
[2020-09-25 10:57:55,546 INFO  L226             Difference]: Without dead ends: 517
[2020-09-25 10:57:55,554 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:57:55,579 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 517 states.
[2020-09-25 10:57:55,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 462.
[2020-09-25 10:57:55,720 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 462 states.
[2020-09-25 10:57:55,724 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 518 transitions.
[2020-09-25 10:57:55,726 INFO  L78                 Accepts]: Start accepts. Automaton has 462 states and 518 transitions. Word has length 153
[2020-09-25 10:57:55,727 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:57:55,727 INFO  L479      AbstractCegarLoop]: Abstraction has 462 states and 518 transitions.
[2020-09-25 10:57:55,728 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:57:55,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 462 states and 518 transitions.
[2020-09-25 10:57:55,735 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 10:57:55,735 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:57:55,735 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]
[2020-09-25 10:57:55,736 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:57:55,736 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:57:55,736 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:57:55,736 INFO  L82        PathProgramCache]: Analyzing trace with hash -401829898, now seen corresponding path program 1 times
[2020-09-25 10:57:55,737 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:57:55,737 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384350965]
[2020-09-25 10:57:55,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:57:55,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:55,854 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,160 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,161 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 10:57:56,161 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,161 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 360
[2020-09-25 10:57:56,162 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,162 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 10:57:56,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 10:57:56,163 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,463 WARN  L193               SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:57:56,464 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:57:56,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,482 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,577 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,578 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:57:56,578 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,578 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 104
[2020-09-25 10:57:56,578 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,579 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,580 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,650 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:57:56,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,651 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,653 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,654 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:56,654 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,654 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,654 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,655 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,655 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,657 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:57:56,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,658 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,660 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,660 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:56,660 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,661 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,661 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,661 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,662 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:57:56,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,669 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,669 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,669 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,670 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:56,670 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,670 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,671 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:57:56,672 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:57:56,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,674 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,675 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,675 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:56,676 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,676 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,676 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,676 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,676 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,677 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,690 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 10:57:56,690 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,692 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,695 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,696 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:57:56,696 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,696 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:56,696 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,696 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,697 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,697 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,697 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,697 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,708 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 10:57:56,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,711 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,714 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,714 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 10:57:56,714 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,714 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:57:56,715 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,715 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 10:57:56,715 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,718 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 10:57:56,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,722 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,722 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,722 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,722 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,723 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,723 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:56,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,724 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,725 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 10:57:56,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,728 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,729 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,730 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,730 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,730 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,730 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,731 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:56,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,731 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,733 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 10:57:56,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,735 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,737 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,737 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,737 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,737 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,737 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,738 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:56,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,738 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:57:56,768 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 10:57:56,768 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384350965]
[2020-09-25 10:57:56,769 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:57:56,769 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 10:57:56,769 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817256501]
[2020-09-25 10:57:56,771 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 10:57:56,772 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:57:56,772 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 10:57:56,772 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 10:57:56,772 INFO  L87              Difference]: Start difference. First operand 462 states and 518 transitions. Second operand 6 states.
[2020-09-25 10:57:57,329 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:58:00,707 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:58:00,708 INFO  L93              Difference]: Finished difference Result 1381 states and 1695 transitions.
[2020-09-25 10:58:00,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 10:58:00,709 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 10:58:00,709 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:58:00,719 INFO  L225             Difference]: With dead ends: 1381
[2020-09-25 10:58:00,719 INFO  L226             Difference]: Without dead ends: 1029
[2020-09-25 10:58:00,724 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 10:58:00,726 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1029 states.
[2020-09-25 10:58:00,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 797.
[2020-09-25 10:58:00,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 797 states.
[2020-09-25 10:58:00,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 910 transitions.
[2020-09-25 10:58:00,872 INFO  L78                 Accepts]: Start accepts. Automaton has 797 states and 910 transitions. Word has length 172
[2020-09-25 10:58:00,873 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:58:00,873 INFO  L479      AbstractCegarLoop]: Abstraction has 797 states and 910 transitions.
[2020-09-25 10:58:00,873 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 10:58:00,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 797 states and 910 transitions.
[2020-09-25 10:58:00,879 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 10:58:00,879 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:58:00,879 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]
[2020-09-25 10:58:00,879 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:58:00,880 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:58:00,880 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:58:00,880 INFO  L82        PathProgramCache]: Analyzing trace with hash 403214129, now seen corresponding path program 1 times
[2020-09-25 10:58:00,880 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:58:00,881 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588583024]
[2020-09-25 10:58:00,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:58:00,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:58:00,956 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:58:00,957 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:58:00,962 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:58:00,990 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:58:00 BoogieIcfgContainer
[2020-09-25 10:58:00,991 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:58:00,993 INFO  L168              Benchmark]: Toolchain (without parser) took 21318.97 ms. Allocated memory was 144.7 MB in the beginning and 506.5 MB in the end (delta: 361.8 MB). Free memory was 101.8 MB in the beginning and 281.5 MB in the end (delta: -179.8 MB). Peak memory consumption was 182.0 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:00,994 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 144.7 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 10:58:00,995 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 777.41 ms. Allocated memory was 144.7 MB in the beginning and 206.0 MB in the end (delta: 61.3 MB). Free memory was 101.1 MB in the beginning and 174.4 MB in the end (delta: -73.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:00,996 INFO  L168              Benchmark]: Boogie Preprocessor took 96.07 ms. Allocated memory is still 206.0 MB. Free memory was 174.4 MB in the beginning and 170.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:00,997 INFO  L168              Benchmark]: RCFGBuilder took 1363.58 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 170.4 MB in the beginning and 170.3 MB in the end (delta: 113.4 kB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:00,998 INFO  L168              Benchmark]: TraceAbstraction took 19070.25 ms. Allocated memory was 235.9 MB in the beginning and 506.5 MB in the end (delta: 270.5 MB). Free memory was 170.3 MB in the beginning and 281.5 MB in the end (delta: -111.2 MB). Peak memory consumption was 159.3 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:01,002 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 144.7 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 777.41 ms. Allocated memory was 144.7 MB in the beginning and 206.0 MB in the end (delta: 61.3 MB). Free memory was 101.1 MB in the beginning and 174.4 MB in the end (delta: -73.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.07 ms. Allocated memory is still 206.0 MB. Free memory was 174.4 MB in the beginning and 170.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1363.58 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 170.4 MB in the beginning and 170.3 MB in the end (delta: 113.4 kB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19070.25 ms. Allocated memory was 235.9 MB in the beginning and 506.5 MB in the end (delta: 270.5 MB). Free memory was 170.3 MB in the beginning and 281.5 MB in the end (delta: -111.2 MB). Peak memory consumption was 159.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L124]               int pumpRunning  =    0;
[L125]               int systemActive  =    1;
[L568]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L812]               int waterLevel  =    1;
[L813]               int methaneLevelCritical  =    0;
[L915]               int cleanupTimeShifts  =    4;
[L988]               int retValue_acc ;
[L989]               int tmp ;
[L993]   FCALL       select_helpers()
[L994]   FCALL       select_features()
[L995]   CALL, EXPR  valid_product()
[L803]               int retValue_acc ;
[L806]               retValue_acc = 1
[L807]               return (retValue_acc);
[L995]   RET, EXPR   valid_product()
[L995]               tmp = valid_product()
[L997]   COND TRUE   \read(tmp)
[L999]   FCALL       setup()
[L1000]  CALL        runTest()
[L982]   CALL        test()
[L47]                int splverifierCounter ;
[L48]                int tmp ;
[L49]                int tmp___0 ;
[L50]                int tmp___1 ;
[L51]                int tmp___2 ;
[L54]                splverifierCounter = 0
[L56]    COND TRUE   1
[L58]    COND TRUE   splverifierCounter < 4
[L64]                tmp = __VERIFIER_nondet_int()
[L66]    COND TRUE   \read(tmp)
[L68]    CALL        waterRise()
[L830]   COND TRUE   waterLevel < 2
[L831]               waterLevel = waterLevel + 1
[L68]    RET         waterRise()
[L74]                tmp___0 = __VERIFIER_nondet_int()
[L76]    COND FALSE  !(\read(tmp___0))
[L84]                tmp___2 = __VERIFIER_nondet_int()
[L86]    COND FALSE  !(\read(tmp___2))
[L92]                tmp___1 = __VERIFIER_nondet_int()
[L94]    COND TRUE   \read(tmp___1)
[L96]    CALL        stopSystem()
[L343]   COND FALSE  !(\read(pumpRunning))
[L350]               systemActive = 0
[L96]    RET         stopSystem()
[L103]   CALL        timeShift()
[L132]   COND FALSE  !(\read(pumpRunning))
[L139]   COND FALSE  !(\read(systemActive))
[L147]   CALL        __utac_acc__Specification3_spec__1()
[L366]               int tmp ;
[L367]               int tmp___0 ;
[L368]               int tmp___1 ;
[L372]   CALL, EXPR  isMethaneLevelCritical()
[L851]               int retValue_acc ;
[L854]               retValue_acc = methaneLevelCritical
[L855]               return (retValue_acc);
[L372]   RET, EXPR   isMethaneLevelCritical()
[L372]               tmp = isMethaneLevelCritical()
[L374]   COND FALSE  !(\read(tmp))
[L378]   CALL, EXPR  getWaterLevel()
[L883]               int retValue_acc ;
[L886]               retValue_acc = waterLevel
[L887]               return (retValue_acc);
[L378]   RET, EXPR   getWaterLevel()
[L378]               tmp___0 = getWaterLevel()
[L380]   COND TRUE   tmp___0 == 2
[L382]   CALL, EXPR  isPumpRunning()
[L257]               int retValue_acc ;
[L260]               retValue_acc = pumpRunning
[L261]               return (retValue_acc);
[L382]   RET, EXPR   isPumpRunning()
[L382]               tmp___1 = isPumpRunning()
[L384]   COND FALSE  !(\read(tmp___1))
[L388]   CALL        __automaton_fail()
[L769]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 43 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 636 SDtfs, 1294 SDslu, 822 SDs, 0 SdLazy, 2263 SolverSat, 476 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=797occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128136 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...