/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_product20.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:42:54,104 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:42:54,108 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:42:54,134 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:42:54,134 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:42:54,136 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:42:54,137 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:42:54,139 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:42:54,141 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:42:54,142 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:42:54,143 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:42:54,144 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:42:54,145 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:42:54,146 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:42:54,147 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:42:54,150 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:42:54,153 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:42:54,154 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:42:54,157 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:42:54,159 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:42:54,161 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:42:54,162 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:42:54,163 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:42:54,164 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:42:54,167 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:42:54,167 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:42:54,167 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:42:54,168 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:42:54,169 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:42:54,170 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:42:54,170 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:42:54,171 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:42:54,172 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:42:54,173 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:42:54,174 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:42:54,174 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:42:54,175 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:42:54,175 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:42:54,175 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:42:54,176 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:42:54,177 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:42:54,178 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 16:42:54,203 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:42:54,204 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:42:54,205 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:42:54,205 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:42:54,205 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:42:54,206 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:42:54,206 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:42:54,206 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:42:54,206 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:42:54,207 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:42:54,207 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:42:54,207 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:42:54,207 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:42:54,207 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:42:54,208 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:42:54,208 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:42:54,208 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:42:54,208 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:42:54,208 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:42:54,209 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:42:54,209 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:42:54,209 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:42:54,209 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:42:54,210 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:42:54,210 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:42:54,210 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:42:54,210 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:42:54,210 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:42:54,211 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:42:54,211 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 16:42:54,707 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:42:54,728 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:42:54,732 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:42:54,734 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:42:54,734 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:42:54,736 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c
[2020-09-24 16:42:54,812 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe85e89b/aaf45db5258b47a9ade7a272f70ca2b2/FLAG496b7dc0c
[2020-09-24 16:42:55,397 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:42:55,398 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c
[2020-09-24 16:42:55,413 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe85e89b/aaf45db5258b47a9ade7a272f70ca2b2/FLAG496b7dc0c
[2020-09-24 16:42:55,670 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe85e89b/aaf45db5258b47a9ade7a272f70ca2b2
[2020-09-24 16:42:55,685 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:42:55,691 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:42:55,692 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:42:55,692 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:42:55,696 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:42:55,698 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:55" (1/1) ...
[2020-09-24 16:42:55,702 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:55, skipping insertion in model container
[2020-09-24 16:42:55,702 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:55" (1/1) ...
[2020-09-24 16:42:55,711 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:42:55,763 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:42:56,165 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:42:56,272 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:42:56,346 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:42:56,380 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:42:56,381 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56 WrapperNode
[2020-09-24 16:42:56,381 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:42:56,382 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:42:56,382 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:42:56,382 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:42:56,396 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (1/1) ...
[2020-09-24 16:42:56,396 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (1/1) ...
[2020-09-24 16:42:56,421 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (1/1) ...
[2020-09-24 16:42:56,421 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (1/1) ...
[2020-09-24 16:42:56,453 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (1/1) ...
[2020-09-24 16:42:56,468 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (1/1) ...
[2020-09-24 16:42:56,478 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (1/1) ...
[2020-09-24 16:42:56,489 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:42:56,489 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:42:56,489 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:42:56,490 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:42:56,491 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (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 16:42:56,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:42:56,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:42:56,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:42:56,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:42:56,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:42:56,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:42:56,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:42:56,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:42:56,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:42:56,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:42:56,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:42:56,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:42:56,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:42:56,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:42:56,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:42:56,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:42:56,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:42:56,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:42:56,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:42:56,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:42:56,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:42:56,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:42:56,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:42:56,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:42:56,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:42:56,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:42:56,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:42:56,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:42:56,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:42:56,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:42:56,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:42:56,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:42:56,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:42:56,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:42:56,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:42:56,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:42:56,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:42:56,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:42:56,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:42:56,574 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:42:56,574 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:42:56,574 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:42:56,574 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:42:56,574 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:42:56,574 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:42:56,575 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:42:56,575 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:42:56,575 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:42:56,575 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:42:56,575 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:42:56,575 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:42:56,576 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:42:56,576 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:42:56,576 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:42:56,576 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:42:56,576 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:42:56,576 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:42:56,577 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:42:56,580 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:42:56,580 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:42:56,580 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:42:56,580 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:42:56,580 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:42:56,581 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:42:56,581 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:42:56,581 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:42:56,581 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:42:56,581 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:42:56,581 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:42:56,582 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:42:56,582 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:42:56,582 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:42:56,582 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:42:56,582 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:42:56,582 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:42:56,582 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:42:56,583 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:42:56,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:42:56,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:42:56,583 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:42:56,583 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:42:56,583 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:42:56,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:42:56,584 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:42:56,584 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:42:56,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:42:56,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:42:56,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:42:56,584 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:42:56,585 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:42:56,586 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:42:56,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:42:57,803 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:42:57,803 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:42:57,814 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:57 BoogieIcfgContainer
[2020-09-24 16:42:57,815 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:42:57,817 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:42:57,817 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:42:57,821 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:42:57,821 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:42:55" (1/3) ...
[2020-09-24 16:42:57,822 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17be3261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:57, skipping insertion in model container
[2020-09-24 16:42:57,822 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:56" (2/3) ...
[2020-09-24 16:42:57,823 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17be3261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:57, skipping insertion in model container
[2020-09-24 16:42:57,823 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:57" (3/3) ...
[2020-09-24 16:42:57,825 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product20.cil.c
[2020-09-24 16:42:57,838 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:42:57,851 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:42:57,875 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:42:57,914 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:42:57,915 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:42:57,915 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:42:57,915 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:42:57,915 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:42:57,915 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:42:57,915 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:42:57,916 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:42:57,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states.
[2020-09-24 16:42:57,956 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:42:57,956 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:42:57,958 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 16:42:57,958 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:42:57,964 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:42:57,964 INFO  L82        PathProgramCache]: Analyzing trace with hash 253748862, now seen corresponding path program 1 times
[2020-09-24 16:42:57,974 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:42:57,975 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425073278]
[2020-09-24 16:42:57,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:42:58,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:42:58,470 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:42:58,675 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:00,091 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:01,160 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:02,472 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,030 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,031 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:43:13,031 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:43:13,031 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14682
[2020-09-24 16:43:13,032 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:43:13,033 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,033 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:43:13,384 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:43:13,389 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:43:13,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:13,427 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,521 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,521 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:43:13,522 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:13,522 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 112
[2020-09-24 16:43:13,522 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:13,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:43:13,589 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:43:13,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:13,591 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,593 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,593 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:43:13,593 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:13,594 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:43:13,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:13,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,595 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:13,597 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:43:13,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:13,599 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,600 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:43:13,601 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:13,601 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:43:13,601 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:13,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,602 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:13,603 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:43:13,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:13,605 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,609 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,609 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:43:13,610 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:13,610 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:43:13,610 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:13,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,611 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:43:13,613 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:43:13,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:13,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,616 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,617 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:43:13,617 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:13,617 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:43:13,618 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:13,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,619 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:43:13,620 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:43:13,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:13,623 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,626 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,626 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:43:13,627 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:13,627 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:43:13,628 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,628 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,628 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:43:13,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,629 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:43:13,631 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:43:13,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:13,634 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:13,637 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:13,637 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:43:13,637 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:13,638 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:43:13,638 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:13,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:13,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:43:13,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:13,640 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:43:13,690 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 16:43:13,691 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425073278]
[2020-09-24 16:43:13,694 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:43:13,694 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:43:13,695 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301331948]
[2020-09-24 16:43:13,703 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:43:13,704 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:43:13,726 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:43:13,727 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:43:13,731 INFO  L87              Difference]: Start difference. First operand 291 states. Second operand 3 states.
[2020-09-24 16:43:14,984 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:43:14,984 INFO  L93              Difference]: Finished difference Result 436 states and 522 transitions.
[2020-09-24 16:43:14,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:43:14,988 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 142
[2020-09-24 16:43:14,989 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:43:15,014 INFO  L225             Difference]: With dead ends: 436
[2020-09-24 16:43:15,014 INFO  L226             Difference]: Without dead ends: 276
[2020-09-24 16:43:15,020 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:43:15,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2020-09-24 16:43:15,115 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234.
[2020-09-24 16:43:15,117 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 234 states.
[2020-09-24 16:43:15,119 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 253 transitions.
[2020-09-24 16:43:15,121 INFO  L78                 Accepts]: Start accepts. Automaton has 234 states and 253 transitions. Word has length 142
[2020-09-24 16:43:15,122 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:43:15,123 INFO  L479      AbstractCegarLoop]: Abstraction has 234 states and 253 transitions.
[2020-09-24 16:43:15,123 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:43:15,123 INFO  L276                IsEmpty]: Start isEmpty. Operand 234 states and 253 transitions.
[2020-09-24 16:43:15,128 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-09-24 16:43:15,128 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:43:15,128 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]
[2020-09-24 16:43:15,129 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:43:15,129 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:43:15,129 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:43:15,129 INFO  L82        PathProgramCache]: Analyzing trace with hash 548958349, now seen corresponding path program 1 times
[2020-09-24 16:43:15,130 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:43:15,130 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25074965]
[2020-09-24 16:43:15,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:43:15,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:15,220 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:15,307 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:16,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:17,318 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:18,061 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:42,689 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:42,690 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 174
[2020-09-24 16:43:42,696 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:43:42,696 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 27514
[2020-09-24 16:43:42,696 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:42,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:43:42,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:43:42,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-24 16:43:42,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:43:43,055 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:43:43,056 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:43:43,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:43,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:43,286 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:43,286 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:43:43,286 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:43,286 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 200
[2020-09-24 16:43:43,286 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:43,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:43:43,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:43,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:43:43,287 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:43,335 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:43:43,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:43,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:43,339 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:43,339 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:43:43,339 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:43,340 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:43:43,340 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:43,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:43:43,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:43,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:43:43,341 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:43,342 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:43:43,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:43,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:43,346 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:43,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:43:43,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:43,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:43:43,347 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:43,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:43:43,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:43,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:43:43,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:43,349 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:43:43,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:43,351 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:43,357 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:43,357 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:43:43,357 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:43,358 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:43:43,358 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:43,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:43:43,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:43,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:43:43,359 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:43,360 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:43:43,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:43,362 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:43,364 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:43,364 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:43:43,364 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:43,365 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:43:43,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:43,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:43:43,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:43:43,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:43:43,366 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:43,367 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:43:43,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:43,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:43,370 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:43,370 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:43:43,370 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:43,370 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:43:43,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:43,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:43,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:43:43,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:43,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:43,372 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:43:43,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:43,375 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:43,376 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:43:43,376 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:43:43,376 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:43:43,376 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:43:43,377 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:43:43,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:43:43,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:43:43,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:43:43,378 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:43:43,404 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 16:43:43,405 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25074965]
[2020-09-24 16:43:43,405 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:43:43,406 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:43:43,406 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121615986]
[2020-09-24 16:43:43,408 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:43:43,409 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:43:43,409 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:43:43,409 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:43:43,410 INFO  L87              Difference]: Start difference. First operand 234 states and 253 transitions. Second operand 5 states.
[2020-09-24 16:43:44,057 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:43:45,861 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:43:45,861 INFO  L93              Difference]: Finished difference Result 540 states and 631 transitions.
[2020-09-24 16:43:45,862 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:43:45,862 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 143
[2020-09-24 16:43:45,863 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:43:45,867 INFO  L225             Difference]: With dead ends: 540
[2020-09-24 16:43:45,868 INFO  L226             Difference]: Without dead ends: 416
[2020-09-24 16:43:45,870 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-09-24 16:43:45,871 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2020-09-24 16:43:45,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 348.
[2020-09-24 16:43:45,944 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 348 states.
[2020-09-24 16:43:45,946 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 387 transitions.
[2020-09-24 16:43:45,947 INFO  L78                 Accepts]: Start accepts. Automaton has 348 states and 387 transitions. Word has length 143
[2020-09-24 16:43:45,947 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:43:45,947 INFO  L479      AbstractCegarLoop]: Abstraction has 348 states and 387 transitions.
[2020-09-24 16:43:45,948 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:43:45,948 INFO  L276                IsEmpty]: Start isEmpty. Operand 348 states and 387 transitions.
[2020-09-24 16:43:45,951 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2020-09-24 16:43:45,951 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:43:45,951 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]
[2020-09-24 16:43:45,951 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:43:45,952 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:43:45,952 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:43:45,952 INFO  L82        PathProgramCache]: Analyzing trace with hash 140541334, now seen corresponding path program 1 times
[2020-09-24 16:43:45,952 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:43:45,953 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403233035]
[2020-09-24 16:43:45,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:43:45,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:43:46,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:46,197 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:46,801 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:43:46,934 FATAL L256   erpolLogProxyWrapper]: Now shrinking...