/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_product47.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:44:30,829 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:44:30,833 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:44:30,876 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:44:30,878 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:44:30,890 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:44:30,892 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:44:30,895 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:44:30,897 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:44:30,899 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:44:30,900 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:44:30,902 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:44:30,902 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:44:30,905 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:44:30,908 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:44:30,909 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:44:30,911 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:44:30,912 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:44:30,914 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:44:30,921 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:44:30,925 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:44:30,926 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:44:30,928 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:44:30,928 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:44:30,933 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:44:30,934 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:44:30,934 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:44:30,937 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:44:30,937 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:44:30,939 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:44:30,939 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:44:30,940 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:44:30,941 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:44:30,942 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:44:30,943 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:44:30,944 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:44:30,944 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:44:30,945 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:44:30,945 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:44:30,946 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:44:30,947 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:44:30,948 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 16:44:30,991 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:44:30,992 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:44:30,994 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:44:30,994 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:44:30,994 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:44:30,994 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:44:30,995 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:44:30,995 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:44:30,995 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:44:30,995 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:44:30,997 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:44:30,997 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:44:30,997 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:44:30,997 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:44:30,998 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:44:30,998 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:44:30,998 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:44:30,998 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:44:30,998 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:44:30,999 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:44:30,999 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:44:30,999 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:44:30,999 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:44:31,000 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:44:31,000 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:44:31,000 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:44:31,000 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:44:31,000 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:44:31,000 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:44:31,001 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 16:44:31,425 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:44:31,443 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:44:31,447 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:44:31,449 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:44:31,450 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:44:31,451 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c
[2020-09-24 16:44:31,532 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/635d9369f/46ab142db9424a58a300c330546940eb/FLAG797e1d862
[2020-09-24 16:44:32,211 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:44:32,212 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c
[2020-09-24 16:44:32,243 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/635d9369f/46ab142db9424a58a300c330546940eb/FLAG797e1d862
[2020-09-24 16:44:32,411 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/635d9369f/46ab142db9424a58a300c330546940eb
[2020-09-24 16:44:32,425 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:44:32,432 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:44:32,434 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:32,434 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:44:32,439 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:44:32,440 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:32" (1/1) ...
[2020-09-24 16:44:32,444 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:32, skipping insertion in model container
[2020-09-24 16:44:32,445 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:32" (1/1) ...
[2020-09-24 16:44:32,453 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:44:32,526 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:44:32,996 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:33,010 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:44:33,099 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:33,148 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:44:33,149 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33 WrapperNode
[2020-09-24 16:44:33,149 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:33,150 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:44:33,150 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:44:33,150 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:44:33,164 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (1/1) ...
[2020-09-24 16:44:33,165 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (1/1) ...
[2020-09-24 16:44:33,185 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (1/1) ...
[2020-09-24 16:44:33,186 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (1/1) ...
[2020-09-24 16:44:33,225 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (1/1) ...
[2020-09-24 16:44:33,247 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (1/1) ...
[2020-09-24 16:44:33,253 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (1/1) ...
[2020-09-24 16:44:33,275 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:44:33,275 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:44:33,276 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:44:33,276 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:44:33,279 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (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 16:44:33,367 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:44:33,368 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:44:33,368 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:33,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:33,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:44:33,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:44:33,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:44:33,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:44:33,370 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:44:33,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:44:33,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:44:33,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:44:33,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:44:33,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:44:33,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:44:33,372 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:44:33,373 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:44:33,373 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:33,373 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:44:33,373 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:44:33,373 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 16:44:33,374 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:44:33,374 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:44:33,374 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:44:33,374 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:44:33,375 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:44:33,375 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:44:33,375 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:44:33,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:44:33,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:33,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:33,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:33,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:44:33,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:44:33,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:44:33,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:44:33,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:44:33,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:44:33,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:44:33,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:44:33,378 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:44:33,378 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:44:33,378 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:44:33,378 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:44:33,378 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:44:33,380 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:44:33,380 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:33,380 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:44:33,380 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:44:33,380 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:44:33,380 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:44:33,381 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:44:33,381 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:44:33,381 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:44:33,381 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:44:33,382 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:44:33,382 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:44:33,382 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:44:33,382 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:44:33,382 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:44:33,383 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:44:33,383 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:44:33,383 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:44:33,383 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:44:33,383 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:33,383 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:44:33,383 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:44:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:44:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 16:44:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:44:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:44:33,385 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:44:33,386 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:44:33,386 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:44:33,387 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:33,387 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:44:33,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:44:33,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:44:33,387 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:44:33,388 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:33,388 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:44:33,388 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:33,388 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:33,388 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:44:33,388 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:44:33,388 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:44:33,389 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:44:33,389 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:44:33,389 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:44:33,389 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:44:33,389 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:44:33,389 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:44:33,390 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:44:33,390 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:44:34,606 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:44:34,606 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:44:34,618 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:34 BoogieIcfgContainer
[2020-09-24 16:44:34,618 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:44:34,621 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:44:34,621 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:44:34,625 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:44:34,625 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:44:32" (1/3) ...
[2020-09-24 16:44:34,626 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8b883e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:34, skipping insertion in model container
[2020-09-24 16:44:34,627 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:33" (2/3) ...
[2020-09-24 16:44:34,627 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8b883e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:34, skipping insertion in model container
[2020-09-24 16:44:34,627 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:34" (3/3) ...
[2020-09-24 16:44:34,630 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c
[2020-09-24 16:44:34,642 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:44:34,658 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:44:34,681 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:44:34,731 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:44:34,731 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:44:34,732 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:44:34,732 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:44:34,732 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:44:34,732 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:44:34,732 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:44:34,732 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:44:34,777 INFO  L276                IsEmpty]: Start isEmpty. Operand 316 states.
[2020-09-24 16:44:34,809 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:44:34,809 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:44:34,810 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 16:44:34,811 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:44:34,821 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:44:34,822 INFO  L82        PathProgramCache]: Analyzing trace with hash -479235834, now seen corresponding path program 1 times
[2020-09-24 16:44:34,835 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:44:34,835 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734201950]
[2020-09-24 16:44:34,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:44:35,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:35,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:35,637 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:36,974 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:38,066 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:39,625 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:51,619 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:51,620 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:44:51,620 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:44:51,620 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16345
[2020-09-24 16:44:51,621 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:51,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:44:51,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 16:44:51,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-24 16:44:51,622 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:44:52,022 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:44:52,025 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:44:52,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:52,101 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:52,302 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:52,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:44:52,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:52,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 238
[2020-09-24 16:44:52,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:52,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:52,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:52,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 16:44:52,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:52,374 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:44:52,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:52,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:52,383 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:52,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:52,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:52,384 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:44:52,384 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:52,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:52,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:52,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:52,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:52,388 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:44:52,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:52,395 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:52,403 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:52,403 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:52,404 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:52,404 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:44:52,404 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:52,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:52,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:52,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:52,405 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:52,407 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:44:52,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:52,411 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:52,430 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:52,431 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:52,431 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:52,431 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20
[2020-09-24 16:44:52,432 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:52,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:52,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:52,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:52,433 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:52,435 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:44:52,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:52,438 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:52,441 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:52,441 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:52,442 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:52,442 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:44:52,442 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:52,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:52,443 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:52,443 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:52,443 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:52,445 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:44:52,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:52,450 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:52,452 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:52,453 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:52,453 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:52,453 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:44:52,453 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:52,454 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:44:52,454 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:44:52,454 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:44:52,455 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:52,457 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:44:52,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:52,460 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:52,461 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:52,462 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:52,462 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:52,462 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:44:52,462 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:52,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:44:52,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:44:52,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:44:52,463 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:52,498 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 16:44:52,499 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734201950]
[2020-09-24 16:44:52,502 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:44:52,502 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:44:52,503 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740249720]
[2020-09-24 16:44:52,514 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:44:52,514 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:44:52,533 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:44:52,534 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:44:52,537 INFO  L87              Difference]: Start difference. First operand 316 states. Second operand 4 states.
[2020-09-24 16:44:53,208 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:44:55,792 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:44:55,792 INFO  L93              Difference]: Finished difference Result 690 states and 842 transitions.
[2020-09-24 16:44:55,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:44:55,795 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2020-09-24 16:44:55,796 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:44:55,834 INFO  L225             Difference]: With dead ends: 690
[2020-09-24 16:44:55,835 INFO  L226             Difference]: Without dead ends: 485
[2020-09-24 16:44:55,842 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 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 16:44:55,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 485 states.
[2020-09-24 16:44:55,995 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 414.
[2020-09-24 16:44:55,997 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 414 states.
[2020-09-24 16:44:56,000 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 467 transitions.
[2020-09-24 16:44:56,003 INFO  L78                 Accepts]: Start accepts. Automaton has 414 states and 467 transitions. Word has length 142
[2020-09-24 16:44:56,004 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:44:56,004 INFO  L479      AbstractCegarLoop]: Abstraction has 414 states and 467 transitions.
[2020-09-24 16:44:56,004 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:44:56,005 INFO  L276                IsEmpty]: Start isEmpty. Operand 414 states and 467 transitions.
[2020-09-24 16:44:56,009 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2020-09-24 16:44:56,009 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:44:56,010 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]
[2020-09-24 16:44:56,010 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:44:56,010 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:44:56,011 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:44:56,011 INFO  L82        PathProgramCache]: Analyzing trace with hash 327725705, now seen corresponding path program 1 times
[2020-09-24 16:44:56,011 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:44:56,012 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63057369]
[2020-09-24 16:44:56,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:44:56,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:56,118 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:56,265 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:56,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,866 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:58,718 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:58,878 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:58,981 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,009 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-24 16:45:15,010 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 7
[2020-09-24 16:45:15,010 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 18943
[2020-09-24 16:45:15,010 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-24 16:45:15,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-24 16:45:15,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 50
[2020-09-24 16:45:15,011 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:15,400 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:45:15,401 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:45:15,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,502 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,502 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:45:15,502 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,502 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-09-24 16:45:15,503 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:15,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:15,503 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:15,532 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:45:15,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,534 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,535 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,535 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:15,535 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:45:15,536 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:15,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:15,537 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:15,538 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:45:15,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,539 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,540 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,540 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:15,541 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,541 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:45:15,541 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:15,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,542 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:15,542 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:15,543 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:45:15,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,544 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,547 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,547 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:15,547 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,547 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:45:15,547 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,548 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:15,548 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,548 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:15,548 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:15,550 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:45:15,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,551 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,552 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,553 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:15,553 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,553 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:45:15,553 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:15,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,554 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:15,554 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:15,565 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 16:45:15,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,575 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,582 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,588 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,590 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,590 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-24 16:45:15,591 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 16:45:15,591 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 16:45:15,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 16:45:15,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 16:45:15,593 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:15,598 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:45:15,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,601 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,608 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,609 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,610 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 16:45:15,610 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:45:15,610 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:45:15,611 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 16:45:15,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 16:45:15,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-24 16:45:15,612 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:15,635 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:45:15,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,637 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,641 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,641 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:15,642 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,642 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:45:15,642 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:15,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,644 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:15,644 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:15,646 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143
[2020-09-24 16:45:15,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,652 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,657 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,658 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:15,658 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,659 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:45:15,659 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:15,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:15,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:15,666 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153
[2020-09-24 16:45:15,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:15,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:15,688 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:15,689 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:15,690 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:15,690 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20
[2020-09-24 16:45:15,690 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:15,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:45:15,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:15,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:15,691 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:15,793 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 16:45:15,794 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63057369]
[2020-09-24 16:45:15,794 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:45:15,795 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 16:45:15,795 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204312131]
[2020-09-24 16:45:15,799 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 16:45:15,800 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:45:15,800 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 16:45:15,800 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:45:15,801 INFO  L87              Difference]: Start difference. First operand 414 states and 467 transitions. Second operand 10 states.
[2020-09-24 16:45:16,299 WARN  L193               SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:45:17,721 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:45:18,045 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:45:18,384 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:18,733 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:45:19,037 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:45:19,684 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:19,997 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:20,359 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:21,759 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:45:21,759 INFO  L93              Difference]: Finished difference Result 1082 states and 1380 transitions.
[2020-09-24 16:45:21,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:45:21,760 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 165
[2020-09-24 16:45:21,762 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:45:21,768 INFO  L225             Difference]: With dead ends: 1082
[2020-09-24 16:45:21,768 INFO  L226             Difference]: Without dead ends: 778
[2020-09-24 16:45:21,773 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380
[2020-09-24 16:45:21,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 778 states.
[2020-09-24 16:45:21,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 631.
[2020-09-24 16:45:21,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 631 states.
[2020-09-24 16:45:21,882 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 744 transitions.
[2020-09-24 16:45:21,883 INFO  L78                 Accepts]: Start accepts. Automaton has 631 states and 744 transitions. Word has length 165
[2020-09-24 16:45:21,883 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:45:21,883 INFO  L479      AbstractCegarLoop]: Abstraction has 631 states and 744 transitions.
[2020-09-24 16:45:21,884 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 16:45:21,884 INFO  L276                IsEmpty]: Start isEmpty. Operand 631 states and 744 transitions.
[2020-09-24 16:45:21,887 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2020-09-24 16:45:21,887 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:45:21,887 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:21,888 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:45:21,888 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:45:21,888 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:45:21,888 INFO  L82        PathProgramCache]: Analyzing trace with hash 1594978526, now seen corresponding path program 1 times
[2020-09-24 16:45:21,888 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:45:21,889 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301904717]
[2020-09-24 16:45:21,889 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:45:21,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:22,002 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:22,580 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:22,713 FATAL L256   erpolLogProxyWrapper]: Now shrinking...