/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_spec1_product49.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:44:32,553 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:44:32,557 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:44:32,584 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:44:32,584 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:44:32,585 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:44:32,587 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:44:32,588 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:44:32,590 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:44:32,591 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:44:32,592 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:44:32,593 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:44:32,593 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:44:32,594 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:44:32,595 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:44:32,596 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:44:32,597 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:44:32,598 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:44:32,600 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:44:32,602 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:44:32,603 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:44:32,604 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:44:32,605 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:44:32,606 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:44:32,611 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:44:32,611 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:44:32,612 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:44:32,612 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:44:32,616 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:44:32,617 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:44:32,617 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:44:32,619 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:44:32,619 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:44:32,620 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:44:32,621 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:44:32,621 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:44:32,622 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:44:32,622 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:44:32,622 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:44:32,631 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:44:32,632 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:44:32,635 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 16:44:32,685 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:44:32,686 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:44:32,687 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:44:32,688 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:44:32,688 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:44:32,688 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:44:32,688 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:44:32,688 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:44:32,689 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:44:32,690 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:44:32,690 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:44:32,690 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:44:32,690 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:44:32,690 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:44:32,691 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:44:32,691 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:44:32,691 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:44:32,691 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:44:32,691 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:44:32,692 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:44:32,693 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:44:32,693 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:44:32,694 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:44:32,694 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:44:32,694 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:44:32,694 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:44:32,694 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:44:32,695 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:44:32,695 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:44:32,695 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 16:44:33,166 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:44:33,187 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:44:33,194 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:44:33,196 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:44:33,196 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:44:33,198 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c
[2020-09-24 16:44:33,272 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/229903322/b78ce6f6b8784886b023eaed27411c5a/FLAG41b1648d0
[2020-09-24 16:44:33,849 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:44:33,850 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c
[2020-09-24 16:44:33,866 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/229903322/b78ce6f6b8784886b023eaed27411c5a/FLAG41b1648d0
[2020-09-24 16:44:34,121 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/229903322/b78ce6f6b8784886b023eaed27411c5a
[2020-09-24 16:44:34,134 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:44:34,140 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:44:34,141 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:34,141 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:44:34,145 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:44:34,147 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:34,151 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34, skipping insertion in model container
[2020-09-24 16:44:34,151 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:34,161 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:44:34,241 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:44:34,674 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:34,701 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:44:34,892 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:34,930 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:44:34,930 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34 WrapperNode
[2020-09-24 16:44:34,931 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:34,932 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:44:34,932 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:44:34,932 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:44:34,946 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:34,947 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:34,970 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:34,971 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:35,017 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:35,026 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:35,032 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (1/1) ...
[2020-09-24 16:44:35,040 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:44:35,041 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:44:35,041 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:44:35,041 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:44:35,042 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (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 16:44:35,147 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:44:35,147 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:44:35,147 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:35,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:35,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:44:35,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:44:35,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:44:35,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:44:35,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:44:35,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:35,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:35,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:35,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:44:35,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:44:35,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:44:35,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:44:35,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:35,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:44:35,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:44:35,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:44:35,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:44:35,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:44:35,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:44:35,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:44:35,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:44:35,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:44:35,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:44:35,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:44:35,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:44:35,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:44:35,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:44:35,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:44:35,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:44:35,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:44:35,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:44:35,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:44:35,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:44:35,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:44:35,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:44:35,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:44:35,157 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:44:35,157 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:44:35,157 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:44:35,158 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:44:35,158 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:44:35,160 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:44:35,161 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:35,161 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:44:35,161 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:44:35,161 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:44:35,161 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:44:35,161 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:44:35,162 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:44:35,162 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:44:35,162 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:44:35,162 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:44:35,163 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:44:35,163 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:44:35,163 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:44:35,163 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:44:35,163 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:44:35,163 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:44:35,164 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:44:35,164 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:35,164 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:44:35,164 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:44:35,164 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:44:35,164 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:44:35,165 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:35,165 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:44:35,165 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:35,166 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:35,166 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:44:35,167 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:44:35,168 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:44:35,168 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:44:35,168 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:44:35,168 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:44:35,168 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:44:35,168 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:44:35,169 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:44:35,169 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:44:35,169 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:44:35,169 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:44:35,169 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:35,169 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:44:35,169 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:44:35,170 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:44:35,170 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:44:35,170 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:44:35,170 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:44:35,170 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:44:35,170 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:44:35,170 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:44:36,404 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:44:36,404 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:44:36,412 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:36 BoogieIcfgContainer
[2020-09-24 16:44:36,412 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:44:36,413 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:44:36,413 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:44:36,417 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:44:36,417 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:44:34" (1/3) ...
[2020-09-24 16:44:36,418 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59057175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:36, skipping insertion in model container
[2020-09-24 16:44:36,419 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:34" (2/3) ...
[2020-09-24 16:44:36,419 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59057175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:36, skipping insertion in model container
[2020-09-24 16:44:36,419 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:36" (3/3) ...
[2020-09-24 16:44:36,421 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c
[2020-09-24 16:44:36,434 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:44:36,446 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:44:36,471 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:44:36,507 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:44:36,507 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:44:36,507 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:44:36,508 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:44:36,508 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:44:36,508 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:44:36,508 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:44:36,508 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:44:36,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 318 states.
[2020-09-24 16:44:36,558 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:44:36,558 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:44:36,560 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]
[2020-09-24 16:44:36,561 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:44:36,569 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:44:36,569 INFO  L82        PathProgramCache]: Analyzing trace with hash -231713174, now seen corresponding path program 1 times
[2020-09-24 16:44:36,582 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:44:36,582 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954872800]
[2020-09-24 16:44:36,583 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:44:36,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:37,149 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:37,362 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:37,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:38,734 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:38,917 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:56,412 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:56,412 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:44:56,412 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:44:56,412 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 19410
[2020-09-24 16:44:56,413 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:56,414 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:44:56,414 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:44:56,414 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-24 16:44:56,415 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:44:56,902 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:44:56,906 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:44:56,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:56,996 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,220 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:57,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:44:57,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:57,222 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 266
[2020-09-24 16:44:57,222 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:57,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:57,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:57,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:44:57,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:44:57,325 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:44:57,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:57,328 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,332 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:57,332 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:57,332 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:57,333 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:44:57,333 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:57,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:57,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:57,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:57,334 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:57,336 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:44:57,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:57,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,342 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:57,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:57,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:57,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:44:57,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:57,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:57,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:57,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:57,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:57,346 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:44:57,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:57,349 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,360 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:57,360 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:57,361 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:57,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 16:44:57,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:57,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:57,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:57,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:57,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:57,365 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:44:57,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:57,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,371 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:57,372 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:57,372 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:57,372 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:44:57,373 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:57,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:57,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:57,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:57,374 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:57,376 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:44:57,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:57,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,382 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:57,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:57,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:57,383 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:44:57,384 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:57,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:57,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:57,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:57,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:57,387 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:44:57,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:57,391 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,398 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:57,399 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:57,399 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:57,400 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:44:57,400 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:57,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:44:57,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:57,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:57,401 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:57,481 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 16:44:57,482 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954872800]
[2020-09-24 16:44:57,485 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:44:57,486 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:44:57,487 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916859600]
[2020-09-24 16:44:57,496 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:44:57,496 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:44:57,520 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:44:57,521 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:44:57,525 INFO  L87              Difference]: Start difference. First operand 318 states. Second operand 8 states.
[2020-09-24 16:44:58,231 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:44:59,558 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:44:59,911 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:00,268 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:00,625 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:00,965 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:01,727 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:45:02,051 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:02,410 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:03,708 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:45:03,709 INFO  L93              Difference]: Finished difference Result 600 states and 746 transitions.
[2020-09-24 16:45:03,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 16:45:03,711 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-09-24 16:45:03,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:45:03,733 INFO  L225             Difference]: With dead ends: 600
[2020-09-24 16:45:03,733 INFO  L226             Difference]: Without dead ends: 399
[2020-09-24 16:45:03,740 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-24 16:45:03,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 399 states.
[2020-09-24 16:45:03,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 357.
[2020-09-24 16:45:03,868 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 357 states.
[2020-09-24 16:45:03,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 409 transitions.
[2020-09-24 16:45:03,874 INFO  L78                 Accepts]: Start accepts. Automaton has 357 states and 409 transitions. Word has length 142
[2020-09-24 16:45:03,875 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:45:03,875 INFO  L479      AbstractCegarLoop]: Abstraction has 357 states and 409 transitions.
[2020-09-24 16:45:03,875 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:45:03,875 INFO  L276                IsEmpty]: Start isEmpty. Operand 357 states and 409 transitions.
[2020-09-24 16:45:03,880 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-24 16:45:03,880 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:45:03,881 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:45:03,881 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:45:03,881 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:45:03,882 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:45:03,882 INFO  L82        PathProgramCache]: Analyzing trace with hash 285397142, now seen corresponding path program 1 times
[2020-09-24 16:45:03,882 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:45:03,882 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13190592]
[2020-09-24 16:45:03,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:45:03,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:03,990 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:04,083 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:05,182 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,970 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,970 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 222
[2020-09-24 16:45:13,970 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:45:13,971 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10028
[2020-09-24 16:45:13,971 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:13,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-24 16:45:13,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 16:45:13,972 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:14,271 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:45:14,272 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:45:14,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,290 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,369 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,370 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:45:14,370 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,370 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 86
[2020-09-24 16:45:14,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:14,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:14,401 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:45:14,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,403 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,404 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,405 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:14,405 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,405 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:14,405 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:14,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,406 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:14,407 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:45:14,408 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,409 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,410 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,411 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:14,411 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,411 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:14,411 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:14,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,412 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:14,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:45:14,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,415 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,417 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,418 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:14,418 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,418 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:14,418 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:14,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,419 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:14,421 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:45:14,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,422 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,424 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,424 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:14,424 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,424 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:14,425 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:14,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,426 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:14,436 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 16:45:14,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,445 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,538 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,538 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 16:45:14,539 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:45:14,539 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 97
[2020-09-24 16:45:14,540 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:45:14,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 29
[2020-09-24 16:45:14,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:45:14,541 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:14,549 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:45:14,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,558 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,618 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,618 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 16:45:14,619 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,619 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 16:45:14,620 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:45:14,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-24 16:45:14,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:45:14,621 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:14,657 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:45:14,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,669 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,700 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,701 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 16:45:14,701 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,702 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 34
[2020-09-24 16:45:14,702 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:45:14,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:14,704 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-24 16:45:14,704 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:14,752 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 16:45:14,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,754 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,758 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,759 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 16:45:14,759 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,760 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:45:14,760 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:14,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,762 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:14,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 16:45:14,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,768 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,769 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,770 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:45:14,770 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,770 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:14,770 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 16:45:14,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,771 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:14,777 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159
[2020-09-24 16:45:14,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,780 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,782 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:14,783 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,783 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:45:14,783 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:45:14,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,785 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:14,787 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169
[2020-09-24 16:45:14,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:14,789 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:14,792 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:14,792 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:14,793 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:14,793 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:45:14,793 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:14,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:14,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:45:14,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:14,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:14,858 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 16:45:14,859 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13190592]
[2020-09-24 16:45:14,859 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:45:14,860 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 16:45:14,860 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734985172]
[2020-09-24 16:45:14,863 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 16:45:14,863 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:45:14,863 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 16:45:14,864 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:45:14,864 INFO  L87              Difference]: Start difference. First operand 357 states and 409 transitions. Second operand 10 states.
[2020-09-24 16:45:15,862 WARN  L193               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:16,898 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:17,216 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:45:17,508 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:45:17,813 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:18,123 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:45:18,408 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:19,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:45:19,271 INFO  L93              Difference]: Finished difference Result 644 states and 768 transitions.
[2020-09-24 16:45:19,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 16:45:19,274 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 181
[2020-09-24 16:45:19,275 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:45:19,285 INFO  L225             Difference]: With dead ends: 644
[2020-09-24 16:45:19,285 INFO  L226             Difference]: Without dead ends: 397
[2020-09-24 16:45:19,292 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306
[2020-09-24 16:45:19,293 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 397 states.
[2020-09-24 16:45:19,338 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 345.
[2020-09-24 16:45:19,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 345 states.
[2020-09-24 16:45:19,341 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 383 transitions.
[2020-09-24 16:45:19,342 INFO  L78                 Accepts]: Start accepts. Automaton has 345 states and 383 transitions. Word has length 181
[2020-09-24 16:45:19,342 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:45:19,342 INFO  L479      AbstractCegarLoop]: Abstraction has 345 states and 383 transitions.
[2020-09-24 16:45:19,342 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 16:45:19,343 INFO  L276                IsEmpty]: Start isEmpty. Operand 345 states and 383 transitions.
[2020-09-24 16:45:19,345 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2020-09-24 16:45:19,345 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:45:19,345 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:45:19,345 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:45:19,346 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:45:19,346 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:45:19,346 INFO  L82        PathProgramCache]: Analyzing trace with hash 948335565, now seen corresponding path program 1 times
[2020-09-24 16:45:19,346 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:45:19,346 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724093528]
[2020-09-24 16:45:19,347 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:45:19,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:19,441 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:19,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...