/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_product57.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:44:58,041 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:44:58,046 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:44:58,089 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:44:58,091 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:44:58,100 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:44:58,102 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:44:58,105 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:44:58,108 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:44:58,111 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:44:58,112 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:44:58,113 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:44:58,113 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:44:58,116 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:44:58,119 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:44:58,121 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:44:58,122 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:44:58,123 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:44:58,125 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:44:58,133 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:44:58,135 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:44:58,136 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:44:58,138 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:44:58,138 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:44:58,150 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:44:58,157 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:44:58,157 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:44:58,158 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:44:58,159 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:44:58,160 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:44:58,160 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:44:58,161 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:44:58,162 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:44:58,163 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:44:58,164 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:44:58,164 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:44:58,165 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:44:58,165 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:44:58,165 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:44:58,166 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:44:58,167 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:44:58,168 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 16:44:58,192 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:44:58,192 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:44:58,194 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:44:58,194 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:44:58,194 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:44:58,194 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:44:58,195 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:44:58,195 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:44:58,195 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:44:58,195 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:44:58,195 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:44:58,196 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:44:58,196 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:44:58,196 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:44:58,196 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:44:58,196 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:44:58,197 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:44:58,197 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:44:58,197 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:44:58,197 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:44:58,197 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:44:58,198 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:44:58,198 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:44:58,198 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:44:58,198 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:44:58,199 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:44:58,199 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:44:58,199 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:44:58,199 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:44:58,199 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 16:44:58,658 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:44:58,677 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:44:58,682 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:44:58,683 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:44:58,684 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:44:58,685 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c
[2020-09-24 16:44:58,766 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd7dffd7a/92272a53ca9b4db595c98ade7bc0bb05/FLAGc796e7aa7
[2020-09-24 16:44:59,395 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:44:59,396 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c
[2020-09-24 16:44:59,412 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd7dffd7a/92272a53ca9b4db595c98ade7bc0bb05/FLAGc796e7aa7
[2020-09-24 16:44:59,693 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd7dffd7a/92272a53ca9b4db595c98ade7bc0bb05
[2020-09-24 16:44:59,707 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:44:59,712 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:44:59,713 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:59,714 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:44:59,718 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:44:59,720 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:59" (1/1) ...
[2020-09-24 16:44:59,725 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:59, skipping insertion in model container
[2020-09-24 16:44:59,725 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:59" (1/1) ...
[2020-09-24 16:44:59,735 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:44:59,811 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:45:00,172 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:45:00,204 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:45:00,394 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:45:00,437 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:45:00,437 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00 WrapperNode
[2020-09-24 16:45:00,438 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:45:00,438 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:45:00,439 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:45:00,439 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:45:00,454 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (1/1) ...
[2020-09-24 16:45:00,454 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (1/1) ...
[2020-09-24 16:45:00,480 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (1/1) ...
[2020-09-24 16:45:00,481 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (1/1) ...
[2020-09-24 16:45:00,513 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (1/1) ...
[2020-09-24 16:45:00,525 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (1/1) ...
[2020-09-24 16:45:00,530 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (1/1) ...
[2020-09-24 16:45:00,538 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:45:00,539 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:45:00,539 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:45:00,539 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:45:00,541 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (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 16:45:00,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:45:00,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:45:00,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:45:00,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:45:00,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:45:00,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:45:00,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:45:00,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:45:00,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:45:00,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:45:00,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:45:00,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:45:00,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:45:00,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:45:00,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:45:00,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:45:00,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:45:00,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:45:00,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:45:00,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:45:00,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:45:00,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:45:00,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:45:00,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:45:00,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:45:00,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:45:00,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:45:00,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:45:00,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:45:00,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:45:00,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:45:00,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:45:00,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:45:00,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:45:00,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:45:00,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:45:00,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:45:00,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:45:00,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:45:00,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:45:00,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:45:00,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:45:00,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:45:00,645 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:45:00,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:45:00,646 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:45:00,646 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:45:00,646 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:45:00,646 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:45:00,646 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:45:00,646 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:45:00,647 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:45:00,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:45:00,647 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:45:00,648 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:45:00,648 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:45:00,648 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:45:00,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:45:00,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:45:00,649 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:45:00,649 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:45:00,649 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:45:00,650 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:45:00,650 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:45:00,650 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:45:00,650 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:45:00,650 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:45:00,650 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:45:00,651 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:45:00,651 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:45:00,651 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:45:00,652 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:45:00,653 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:45:00,653 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:45:00,654 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:45:00,654 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:45:00,654 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:45:00,654 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:45:00,654 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:45:00,654 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:45:00,655 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:45:00,655 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:45:00,656 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:45:00,656 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:45:00,656 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:45:00,656 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:45:00,656 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:45:00,657 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:45:00,657 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:45:00,657 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:45:00,657 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:45:00,657 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:45:00,658 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:45:00,658 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:45:00,658 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:45:00,658 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:45:01,872 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:45:01,872 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:45:01,880 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:45:01 BoogieIcfgContainer
[2020-09-24 16:45:01,881 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:45:01,885 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:45:01,885 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:45:01,889 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:45:01,890 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:44:59" (1/3) ...
[2020-09-24 16:45:01,890 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@854e70c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:45:01, skipping insertion in model container
[2020-09-24 16:45:01,891 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:00" (2/3) ...
[2020-09-24 16:45:01,891 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@854e70c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:45:01, skipping insertion in model container
[2020-09-24 16:45:01,891 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:45:01" (3/3) ...
[2020-09-24 16:45:01,894 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c
[2020-09-24 16:45:01,907 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:45:01,920 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:45:01,945 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:45:01,979 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:45:01,980 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:45:01,980 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:45:01,980 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:45:01,980 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:45:01,980 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:45:01,981 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:45:01,981 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:45:02,011 INFO  L276                IsEmpty]: Start isEmpty. Operand 329 states.
[2020-09-24 16:45:02,030 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:45:02,030 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:45:02,032 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 16:45:02,032 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:45:02,040 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:45:02,041 INFO  L82        PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times
[2020-09-24 16:45:02,052 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:45:02,053 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729386858]
[2020-09-24 16:45:02,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:45:02,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:02,579 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:02,744 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:03,225 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:04,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:04,347 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:23,615 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:23,615 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:45:23,615 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:45:23,615 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 21182
[2020-09-24 16:45:23,617 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:23,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:23,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:45:23,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-24 16:45:23,618 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:45:24,078 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:45:24,081 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:45:24,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:24,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,364 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,365 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:45:24,365 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:24,365 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 244
[2020-09-24 16:45:24,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:24,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:24,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:45:24,369 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 16:45:24,440 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:45:24,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:24,444 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,452 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,456 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:24,456 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:24,456 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 16:45:24,457 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:24,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:24,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:24,458 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:24,462 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:45:24,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:24,467 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,471 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,471 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:24,472 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:24,472 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:45:24,472 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:24,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:24,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:24,473 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:24,479 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:45:24,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:24,484 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,491 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,492 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:24,492 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:24,492 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:45:24,493 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:24,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:24,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:24,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:24,496 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:45:24,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:24,499 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,502 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,503 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:24,503 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:24,503 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:45:24,503 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:24,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:24,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:24,504 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:24,506 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:45:24,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:24,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,511 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,512 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:24,512 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:24,512 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:24,512 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:24,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:45:24,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:24,513 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:24,518 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:45:24,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:24,520 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,522 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,522 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:24,522 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:24,523 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:24,523 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:24,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:45:24,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:24,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:24,557 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 16:45:24,558 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729386858]
[2020-09-24 16:45:24,560 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:45:24,561 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:45:24,562 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686686849]
[2020-09-24 16:45:24,572 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:45:24,572 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:45:24,590 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:45:24,591 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:45:24,593 INFO  L87              Difference]: Start difference. First operand 329 states. Second operand 4 states.
[2020-09-24 16:45:25,246 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:45:26,594 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:45:26,595 INFO  L93              Difference]: Finished difference Result 525 states and 620 transitions.
[2020-09-24 16:45:26,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:45:26,597 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2020-09-24 16:45:26,599 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:45:26,620 INFO  L225             Difference]: With dead ends: 525
[2020-09-24 16:45:26,620 INFO  L226             Difference]: Without dead ends: 321
[2020-09-24 16:45:26,626 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:45:26,647 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2020-09-24 16:45:26,737 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278.
[2020-09-24 16:45:26,739 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 278 states.
[2020-09-24 16:45:26,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions.
[2020-09-24 16:45:26,744 INFO  L78                 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 142
[2020-09-24 16:45:26,745 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:45:26,745 INFO  L479      AbstractCegarLoop]: Abstraction has 278 states and 301 transitions.
[2020-09-24 16:45:26,745 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:45:26,746 INFO  L276                IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions.
[2020-09-24 16:45:26,751 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2020-09-24 16:45:26,751 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:45:26,752 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]
[2020-09-24 16:45:26,752 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:45:26,752 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:45:26,753 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:45:26,753 INFO  L82        PathProgramCache]: Analyzing trace with hash 1427031856, now seen corresponding path program 1 times
[2020-09-24 16:45:26,753 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:45:26,754 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835428562]
[2020-09-24 16:45:26,754 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:45:26,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:26,859 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:26,948 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:27,086 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:27,470 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:31,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:32,407 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:32,576 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:32,668 FATAL L256   erpolLogProxyWrapper]: Now shrinking...