/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:51:15,664 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:51:15,668 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:51:15,694 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:51:15,695 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:51:15,696 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:51:15,697 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:51:15,699 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:51:15,701 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:51:15,702 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:51:15,703 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:51:15,704 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:51:15,704 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:51:15,705 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:51:15,706 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:51:15,708 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:51:15,708 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:51:15,709 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:51:15,711 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:51:15,714 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:51:15,715 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:51:15,717 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:51:15,718 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:51:15,719 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:51:15,721 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:51:15,722 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:51:15,722 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:51:15,723 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:51:15,724 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:51:15,725 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:51:15,725 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:51:15,726 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:51:15,726 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:51:15,727 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:51:15,728 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:51:15,729 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:51:15,729 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:51:15,730 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:51:15,730 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:51:15,731 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:51:15,731 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:51:15,732 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
[2020-09-24 16:51:15,763 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:51:15,763 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:51:15,764 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:51:15,765 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:51:15,765 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:51:15,765 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:51:15,765 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:51:15,766 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:51:15,766 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:51:15,766 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:51:15,766 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:51:15,766 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:51:15,767 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:51:15,767 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:51:15,767 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:51:15,767 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:51:15,767 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:51:15,768 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:51:15,768 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:51:15,768 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:51:15,768 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:51:15,769 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:51:15,769 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:51:15,769 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:51:15,769 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:51:15,769 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:51:15,770 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:51:15,770 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:51:15,770 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:51:15,770 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;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;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;log-additional-information=true;
[2020-09-24 16:51:16,217 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:51:16,236 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:51:16,240 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:51:16,242 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:51:16,243 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:51:16,244 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c
[2020-09-24 16:51:16,322 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd73dad6f/ba36012bc0634fdb88f755dd2ea53e09/FLAGc29513d72
[2020-09-24 16:51:16,963 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:51:16,964 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c
[2020-09-24 16:51:16,997 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd73dad6f/ba36012bc0634fdb88f755dd2ea53e09/FLAGc29513d72
[2020-09-24 16:51:17,206 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd73dad6f/ba36012bc0634fdb88f755dd2ea53e09
[2020-09-24 16:51:17,219 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:51:17,223 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:51:17,224 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:51:17,225 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:51:17,230 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:51:17,231 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:17,236 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68320178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17, skipping insertion in model container
[2020-09-24 16:51:17,236 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:17,247 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:51:17,297 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:51:17,665 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:51:17,766 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:51:17,867 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:51:17,911 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:51:17,911 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17 WrapperNode
[2020-09-24 16:51:17,912 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:51:17,913 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:51:17,913 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:51:17,913 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:51:17,929 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:17,929 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:17,950 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:17,951 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:17,986 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:17,997 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:18,003 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (1/1) ...
[2020-09-24 16:51:18,012 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:51:18,012 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:51:18,012 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:51:18,013 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:51:18,014 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (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
[2020-09-24 16:51:18,100 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:51:18,100 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:51:18,100 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:51:18,101 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:51:18,101 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:51:18,101 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:51:18,101 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:51:18,101 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:51:18,102 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:51:18,102 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:51:18,102 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:51:18,102 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:51:18,102 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:51:18,103 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:51:18,103 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:51:18,103 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:51:18,103 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:51:18,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:51:18,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:51:18,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:51:18,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:51:18,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:51:18,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:51:18,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:51:18,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:51:18,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:51:18,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:51:18,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:51:18,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:51:18,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:51:18,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:51:18,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:51:18,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:51:18,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:51:18,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:51:18,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:51:18,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:51:18,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:51:18,107 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:51:18,108 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:51:18,108 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:51:18,108 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:51:18,108 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:51:18,108 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:51:18,108 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:51:18,109 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:51:18,109 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:51:18,109 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:51:18,109 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:51:18,109 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:51:18,109 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:51:18,110 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:51:18,112 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:51:18,112 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:51:18,112 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:51:18,112 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:51:18,112 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:51:18,113 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:51:18,113 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:51:18,113 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:51:18,113 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:51:18,113 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:51:18,113 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:51:18,114 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:51:18,114 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:51:18,114 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:51:18,114 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:51:18,114 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:51:18,114 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:51:18,115 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:51:18,115 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:51:18,115 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:51:18,115 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:51:18,115 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:51:18,115 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:51:18,116 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:51:18,116 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:51:18,116 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:51:18,116 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:51:18,116 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:51:18,116 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:51:18,117 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:51:18,117 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:51:18,117 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:51:18,117 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:51:18,117 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:51:18,117 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:51:18,118 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:51:18,118 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:51:18,118 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:51:19,274 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:51:19,275 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:51:19,282 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:19 BoogieIcfgContainer
[2020-09-24 16:51:19,282 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:51:19,283 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:51:19,284 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:51:19,287 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:51:19,288 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:51:17" (1/3) ...
[2020-09-24 16:51:19,289 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6017d3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:19, skipping insertion in model container
[2020-09-24 16:51:19,289 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:17" (2/3) ...
[2020-09-24 16:51:19,289 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6017d3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:19, skipping insertion in model container
[2020-09-24 16:51:19,289 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:19" (3/3) ...
[2020-09-24 16:51:19,292 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c
[2020-09-24 16:51:19,305 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:51:19,318 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:51:19,342 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:51:19,379 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:51:19,379 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:51:19,380 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:51:19,380 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:51:19,380 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:51:19,380 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:51:19,380 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:51:19,380 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:51:19,412 INFO  L276                IsEmpty]: Start isEmpty. Operand 299 states.
[2020-09-24 16:51:19,431 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:51:19,431 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:19,433 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]
[2020-09-24 16:51:19,434 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:19,442 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:19,443 INFO  L82        PathProgramCache]: Analyzing trace with hash 1309084967, now seen corresponding path program 1 times
[2020-09-24 16:51:19,456 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:19,457 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694186085]
[2020-09-24 16:51:19,457 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:19,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:19,981 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:20,145 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:21,737 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:25,481 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:25,482 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:51:25,485 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:51:25,486 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5643
[2020-09-24 16:51:25,487 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:25,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:25,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:51:25,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:25,488 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:51:25,914 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:51:25,917 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:51:25,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:25,961 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,094 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,094 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:51:26,102 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,104 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 145
[2020-09-24 16:51:26,104 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:26,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,105 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:26,180 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:51:26,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:26,183 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,185 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,185 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:26,185 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,186 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:26,186 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:26,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,187 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:26,190 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:51:26,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:26,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,195 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,195 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:26,195 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,195 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:26,196 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:26,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,197 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:26,199 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:51:26,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:26,201 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,207 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,207 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:26,207 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,208 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:51:26,208 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,209 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:26,211 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:51:26,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:26,214 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,216 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,216 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:26,217 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,217 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:26,217 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:26,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,218 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:26,220 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:51:26,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:26,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,227 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,227 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:26,227 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,228 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:51:26,228 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:26,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,229 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:26,231 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:51:26,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:26,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,238 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,238 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:26,239 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,239 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:26,239 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:26,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,241 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:26,243 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:51:26,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:26,248 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:26,250 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:26,250 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:26,251 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:26,251 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:26,251 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:26,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:26,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:26,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:26,252 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:26,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:51:26,321 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694186085]
[2020-09-24 16:51:26,323 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:51:26,324 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:51:26,325 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332108758]
[2020-09-24 16:51:26,335 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:51:26,335 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:51:26,352 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:51:26,354 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:51:26,357 INFO  L87              Difference]: Start difference. First operand 299 states. Second operand 3 states.
[2020-09-24 16:51:27,674 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:51:27,675 INFO  L93              Difference]: Finished difference Result 450 states and 535 transitions.
[2020-09-24 16:51:27,675 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:51:27,677 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:51:27,678 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:51:27,697 INFO  L225             Difference]: With dead ends: 450
[2020-09-24 16:51:27,697 INFO  L226             Difference]: Without dead ends: 282
[2020-09-24 16:51:27,703 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:51:27,726 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2020-09-24 16:51:27,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 242.
[2020-09-24 16:51:27,807 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 242 states.
[2020-09-24 16:51:27,809 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 261 transitions.
[2020-09-24 16:51:27,813 INFO  L78                 Accepts]: Start accepts. Automaton has 242 states and 261 transitions. Word has length 153
[2020-09-24 16:51:27,814 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:51:27,814 INFO  L479      AbstractCegarLoop]: Abstraction has 242 states and 261 transitions.
[2020-09-24 16:51:27,820 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:51:27,821 INFO  L276                IsEmpty]: Start isEmpty. Operand 242 states and 261 transitions.
[2020-09-24 16:51:27,831 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:51:27,831 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:27,831 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]
[2020-09-24 16:51:27,832 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:51:27,832 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:27,832 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:27,832 INFO  L82        PathProgramCache]: Analyzing trace with hash -2119975589, now seen corresponding path program 1 times
[2020-09-24 16:51:27,832 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:27,833 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485225820]
[2020-09-24 16:51:27,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:27,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:27,955 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:28,050 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:29,696 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:34,658 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:34,658 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:51:34,659 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:51:34,659 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6763
[2020-09-24 16:51:34,659 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:34,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:51:34,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:51:34,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-24 16:51:34,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,016 WARN  L193               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:51:35,017 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:51:35,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,093 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,297 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,297 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:51:35,297 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,298 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 238
[2020-09-24 16:51:35,298 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:35,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:35,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:51:35,299 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,353 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:51:35,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,358 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,360 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,360 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:35,361 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:51:35,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,361 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:35,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:35,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:35,362 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,363 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:51:35,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,365 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,367 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,367 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:35,367 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,367 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:35,368 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:35,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:35,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:35,369 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,371 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:51:35,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,373 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,380 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,380 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:35,381 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,381 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:51:35,381 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:35,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:35,382 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:51:35,382 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,384 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:51:35,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,386 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,391 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,391 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:35,391 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,391 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:51:35,391 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:35,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:35,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:35,392 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,394 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:51:35,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,398 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,398 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:35,398 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,398 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:35,399 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:35,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:35,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:35,399 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,402 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:51:35,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,404 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,405 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,405 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:35,405 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,405 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:35,406 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:35,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:35,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:35,406 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,408 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:51:35,408 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:35,409 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:35,410 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:35,411 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:35,411 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:35,411 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:35,411 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:35,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:35,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:35,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:35,412 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:35,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:51:35,480 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485225820]
[2020-09-24 16:51:35,480 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:51:35,481 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:51:35,481 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943812343]
[2020-09-24 16:51:35,483 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:51:35,483 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:51:35,484 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:51:35,484 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:51:35,484 INFO  L87              Difference]: Start difference. First operand 242 states and 261 transitions. Second operand 4 states.
[2020-09-24 16:51:35,940 WARN  L193               SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:51:36,857 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:51:36,857 INFO  L93              Difference]: Finished difference Result 414 states and 476 transitions.
[2020-09-24 16:51:36,861 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:51:36,861 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-24 16:51:36,862 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:51:36,865 INFO  L225             Difference]: With dead ends: 414
[2020-09-24 16:51:36,865 INFO  L226             Difference]: Without dead ends: 282
[2020-09-24 16:51:36,867 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:51:36,868 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2020-09-24 16:51:36,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 242.
[2020-09-24 16:51:36,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 242 states.
[2020-09-24 16:51:36,937 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 260 transitions.
[2020-09-24 16:51:36,938 INFO  L78                 Accepts]: Start accepts. Automaton has 242 states and 260 transitions. Word has length 154
[2020-09-24 16:51:36,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:51:36,940 INFO  L479      AbstractCegarLoop]: Abstraction has 242 states and 260 transitions.
[2020-09-24 16:51:36,940 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:51:36,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 242 states and 260 transitions.
[2020-09-24 16:51:36,946 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-24 16:51:36,946 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:36,946 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]
[2020-09-24 16:51:36,947 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:51:36,947 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:36,947 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:36,947 INFO  L82        PathProgramCache]: Analyzing trace with hash 471162040, now seen corresponding path program 1 times
[2020-09-24 16:51:36,947 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:36,948 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144898251]
[2020-09-24 16:51:36,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:36,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:37,043 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:37,163 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:37,334 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:40,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:41,422 FATAL L256   erpolLogProxyWrapper]: Now shrinking...