/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_spec2_product40.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 07:30:25,183 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 07:30:25,187 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 07:30:25,212 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 07:30:25,213 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 07:30:25,214 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 07:30:25,215 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 07:30:25,217 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 07:30:25,219 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 07:30:25,220 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 07:30:25,221 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 07:30:25,223 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 07:30:25,223 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 07:30:25,224 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 07:30:25,226 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 07:30:25,227 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 07:30:25,228 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 07:30:25,229 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 07:30:25,231 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 07:30:25,233 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 07:30:25,235 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 07:30:25,236 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 07:30:25,237 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 07:30:25,238 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 07:30:25,241 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 07:30:25,241 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 07:30:25,241 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 07:30:25,242 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 07:30:25,243 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 07:30:25,244 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 07:30:25,244 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 07:30:25,245 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 07:30:25,246 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 07:30:25,247 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 07:30:25,248 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 07:30:25,249 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 07:30:25,249 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 07:30:25,250 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 07:30:25,250 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 07:30:25,251 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 07:30:25,252 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 07:30:25,253 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
[2020-09-25 07:30:25,301 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 07:30:25,302 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 07:30:25,304 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 07:30:25,304 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 07:30:25,305 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 07:30:25,305 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 07:30:25,305 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 07:30:25,305 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 07:30:25,305 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 07:30:25,306 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 07:30:25,306 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 07:30:25,306 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 07:30:25,306 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 07:30:25,306 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 07:30:25,307 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 07:30:25,307 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 07:30:25,307 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 07:30:25,307 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 07:30:25,307 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 07:30:25,309 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 07:30:25,309 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 07:30:25,309 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:30:25,310 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 07:30:25,310 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 07:30:25,310 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 07:30:25,310 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 07:30:25,311 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 07:30:25,311 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 07:30:25,311 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 07:30:25,311 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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
[2020-09-25 07:30:25,825 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 07:30:25,849 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 07:30:25,854 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 07:30:25,857 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 07:30:25,857 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 07:30:25,859 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c
[2020-09-25 07:30:25,956 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bda03d018/79bba6fa494c462e85d08a5e0392b83b/FLAGf7072e605
[2020-09-25 07:30:26,544 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 07:30:26,545 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c
[2020-09-25 07:30:26,561 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bda03d018/79bba6fa494c462e85d08a5e0392b83b/FLAGf7072e605
[2020-09-25 07:30:26,829 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bda03d018/79bba6fa494c462e85d08a5e0392b83b
[2020-09-25 07:30:26,843 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 07:30:26,850 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 07:30:26,851 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 07:30:26,851 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 07:30:26,855 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 07:30:26,856 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:26" (1/1) ...
[2020-09-25 07:30:26,861 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:26, skipping insertion in model container
[2020-09-25 07:30:26,861 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:26" (1/1) ...
[2020-09-25 07:30:26,870 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 07:30:26,945 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 07:30:27,352 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:30:27,368 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 07:30:27,544 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:30:27,582 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 07:30:27,583 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27 WrapperNode
[2020-09-25 07:30:27,583 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 07:30:27,584 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 07:30:27,584 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 07:30:27,584 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 07:30:27,601 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (1/1) ...
[2020-09-25 07:30:27,602 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (1/1) ...
[2020-09-25 07:30:27,623 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (1/1) ...
[2020-09-25 07:30:27,623 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (1/1) ...
[2020-09-25 07:30:27,676 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (1/1) ...
[2020-09-25 07:30:27,688 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (1/1) ...
[2020-09-25 07:30:27,693 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (1/1) ...
[2020-09-25 07:30:27,706 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 07:30:27,706 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 07:30:27,707 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 07:30:27,710 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 07:30:27,711 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (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
[2020-09-25 07:30:27,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 07:30:27,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 07:30:27,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:30:27,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2020-09-25 07:30:27,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2020-09-25 07:30:27,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 07:30:27,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 07:30:27,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 07:30:27,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 07:30:27,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 07:30:27,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 07:30:27,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 07:30:27,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 07:30:27,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 07:30:27,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 07:30:27,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 07:30:27,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 07:30:27,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 07:30:27,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 07:30:27,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 07:30:27,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 07:30:27,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 07:30:27,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 07:30:27,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 07:30:27,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 07:30:27,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 07:30:27,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 07:30:27,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:30:27,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 07:30:27,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 07:30:27,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 07:30:27,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 07:30:27,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 07:30:27,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 07:30:27,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 07:30:27,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 07:30:27,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 07:30:27,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 07:30:27,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 07:30:27,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 07:30:27,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 07:30:27,822 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 07:30:27,823 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 07:30:27,823 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 07:30:27,823 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 07:30:27,823 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 07:30:27,823 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 07:30:27,823 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2020-09-25 07:30:27,824 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2020-09-25 07:30:27,824 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 07:30:27,824 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 07:30:27,824 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 07:30:27,824 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 07:30:27,824 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 07:30:27,825 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 07:30:27,825 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 07:30:27,825 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 07:30:27,825 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 07:30:27,825 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 07:30:27,825 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 07:30:27,825 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 07:30:27,826 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 07:30:27,826 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 07:30:27,826 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 07:30:27,826 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 07:30:27,826 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 07:30:27,826 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 07:30:27,827 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 07:30:27,827 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 07:30:27,827 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 07:30:27,827 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 07:30:27,827 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 07:30:27,828 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 07:30:27,828 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 07:30:27,828 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 07:30:27,828 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 07:30:27,828 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 07:30:27,828 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 07:30:27,829 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 07:30:27,829 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:30:27,829 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:30:27,829 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 07:30:27,829 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 07:30:27,830 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 07:30:27,830 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 07:30:27,830 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 07:30:27,830 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 07:30:27,830 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 07:30:27,830 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 07:30:27,831 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 07:30:27,831 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 07:30:27,831 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 07:30:27,831 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 07:30:27,831 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 07:30:27,831 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 07:30:27,832 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 07:30:29,136 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 07:30:29,136 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 07:30:29,144 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:29 BoogieIcfgContainer
[2020-09-25 07:30:29,144 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 07:30:29,146 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 07:30:29,146 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 07:30:29,149 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 07:30:29,150 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:30:26" (1/3) ...
[2020-09-25 07:30:29,150 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506994df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:29, skipping insertion in model container
[2020-09-25 07:30:29,151 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:27" (2/3) ...
[2020-09-25 07:30:29,151 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506994df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:29, skipping insertion in model container
[2020-09-25 07:30:29,151 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:29" (3/3) ...
[2020-09-25 07:30:29,154 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c
[2020-09-25 07:30:29,165 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 07:30:29,174 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 07:30:29,194 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 07:30:29,226 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 07:30:29,226 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 07:30:29,226 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 07:30:29,226 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 07:30:29,226 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 07:30:29,226 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 07:30:29,226 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 07:30:29,227 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 07:30:29,254 INFO  L276                IsEmpty]: Start isEmpty. Operand 320 states.
[2020-09-25 07:30:29,273 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-25 07:30:29,274 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:30:29,275 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]
[2020-09-25 07:30:29,276 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:30:29,283 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:30:29,284 INFO  L82        PathProgramCache]: Analyzing trace with hash -368362639, now seen corresponding path program 1 times
[2020-09-25 07:30:29,294 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:30:29,294 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635732071]
[2020-09-25 07:30:29,295 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:30:29,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:29,754 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:29,970 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:31,505 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:32,526 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:32,776 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:34,364 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:34,661 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:34,662 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-25 07:30:34,662 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 07:30:34,662 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5039
[2020-09-25 07:30:34,666 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:34,667 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:34,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:34,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 07:30:34,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:34,668 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 07:30:35,095 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:30:35,098 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:30:35,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,270 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:30:35,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 150
[2020-09-25 07:30:35,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,271 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:35,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,331 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:30:35,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,334 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,336 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:35,336 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,336 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:35,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,336 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:35,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,339 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:30:35,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,343 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:35,344 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,344 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:35,344 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,344 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:35,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,345 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,347 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:30:35,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,350 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,355 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,355 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:35,355 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,356 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 07:30:35,356 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,356 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:35,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,357 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,360 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:30:35,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,362 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,364 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,364 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:35,365 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,365 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:35,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,366 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:35,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,367 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,377 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:30:35,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,381 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:30:35,382 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,382 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:35,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,383 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:35,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,384 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,385 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 07:30:35,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,388 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,390 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,390 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:35,390 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,390 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:35,391 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,391 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:35,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,392 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,394 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 07:30:35,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:35,397 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:35,398 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:35,398 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:35,399 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:35,399 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:35,399 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:35,399 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:35,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:35,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:35,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:35,400 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:35,430 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:30:35,431 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635732071]
[2020-09-25 07:30:35,434 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:30:35,434 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 07:30:35,435 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944740530]
[2020-09-25 07:30:35,442 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 07:30:35,442 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:30:35,460 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 07:30:35,461 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 07:30:35,464 INFO  L87              Difference]: Start difference. First operand 320 states. Second operand 4 states.
[2020-09-25 07:30:37,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:30:37,120 INFO  L93              Difference]: Finished difference Result 505 states and 602 transitions.
[2020-09-25 07:30:37,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 07:30:37,123 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2020-09-25 07:30:37,124 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:30:37,144 INFO  L225             Difference]: With dead ends: 505
[2020-09-25 07:30:37,144 INFO  L226             Difference]: Without dead ends: 321
[2020-09-25 07:30:37,151 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 07:30:37,174 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2020-09-25 07:30:37,276 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 269.
[2020-09-25 07:30:37,278 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 269 states.
[2020-09-25 07:30:37,280 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 294 transitions.
[2020-09-25 07:30:37,283 INFO  L78                 Accepts]: Start accepts. Automaton has 269 states and 294 transitions. Word has length 148
[2020-09-25 07:30:37,284 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:30:37,284 INFO  L479      AbstractCegarLoop]: Abstraction has 269 states and 294 transitions.
[2020-09-25 07:30:37,284 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 07:30:37,284 INFO  L276                IsEmpty]: Start isEmpty. Operand 269 states and 294 transitions.
[2020-09-25 07:30:37,292 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-09-25 07:30:37,292 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:30:37,292 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]
[2020-09-25 07:30:37,293 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 07:30:37,293 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:30:37,293 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:30:37,294 INFO  L82        PathProgramCache]: Analyzing trace with hash 2053645548, now seen corresponding path program 1 times
[2020-09-25 07:30:37,294 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:30:37,294 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033810474]
[2020-09-25 07:30:37,294 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:30:37,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:37,421 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:37,523 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:39,196 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:39,997 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:40,594 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,369 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,369 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 182
[2020-09-25 07:30:42,369 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 07:30:42,370 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5017
[2020-09-25 07:30:42,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,371 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:42,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 07:30:42,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 07:30:42,372 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:42,688 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:30:42,689 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:30:42,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,719 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,810 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,810 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:30:42,810 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,811 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 100
[2020-09-25 07:30:42,811 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,811 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:42,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,812 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:42,856 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:30:42,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,858 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,859 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,861 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:42,861 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,861 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:42,861 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,862 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:42,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,862 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:42,864 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:30:42,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,866 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,867 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,867 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:42,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,868 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:42,868 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,868 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:42,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,869 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:42,870 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:30:42,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,872 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,876 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,876 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:42,876 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,877 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:30:42,877 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,877 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,878 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:42,878 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,878 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:42,880 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:30:42,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,884 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,884 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:42,884 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,884 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:42,885 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,885 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,885 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,885 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:42,886 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,886 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:42,898 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:30:42,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,901 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,902 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,902 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:30:42,903 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,903 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:42,903 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,903 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:42,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,907 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 07:30:42,942 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-25 07:30:42,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,948 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,949 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,949 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:42,950 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,953 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:42,953 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,953 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:42,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,954 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:30:42,956 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 07:30:42,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:42,958 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:42,959 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:42,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:42,960 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:42,960 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:42,960 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:42,961 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:42,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:42,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:42,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:42,961 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:42,988 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:30:42,988 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033810474]
[2020-09-25 07:30:42,989 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:30:42,989 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 07:30:42,989 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801718240]
[2020-09-25 07:30:42,991 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 07:30:42,992 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:30:42,992 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 07:30:42,992 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 07:30:42,993 INFO  L87              Difference]: Start difference. First operand 269 states and 294 transitions. Second operand 5 states.
[2020-09-25 07:30:43,614 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:30:44,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:30:44,880 INFO  L93              Difference]: Finished difference Result 424 states and 485 transitions.
[2020-09-25 07:30:44,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 07:30:44,881 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-09-25 07:30:44,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:30:44,891 INFO  L225             Difference]: With dead ends: 424
[2020-09-25 07:30:44,892 INFO  L226             Difference]: Without dead ends: 310
[2020-09-25 07:30:44,894 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 07:30:44,895 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 310 states.
[2020-09-25 07:30:44,938 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 259.
[2020-09-25 07:30:44,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 259 states.
[2020-09-25 07:30:44,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 281 transitions.
[2020-09-25 07:30:44,943 INFO  L78                 Accepts]: Start accepts. Automaton has 259 states and 281 transitions. Word has length 149
[2020-09-25 07:30:44,946 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:30:44,946 INFO  L479      AbstractCegarLoop]: Abstraction has 259 states and 281 transitions.
[2020-09-25 07:30:44,946 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 07:30:44,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 259 states and 281 transitions.
[2020-09-25 07:30:44,950 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 07:30:44,950 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:30:44,950 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:30:44,950 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 07:30:44,951 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:30:44,951 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:30:44,951 INFO  L82        PathProgramCache]: Analyzing trace with hash 487690811, now seen corresponding path program 1 times
[2020-09-25 07:30:44,951 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:30:44,951 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882825897]
[2020-09-25 07:30:44,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:30:45,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:45,073 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:45,307 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:46,144 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:46,405 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,885 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,032 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,033 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 195
[2020-09-25 07:30:50,033 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:30:50,033 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5018
[2020-09-25 07:30:50,034 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,034 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:50,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 07:30:50,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 07:30:50,035 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,391 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:30:50,392 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:30:50,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,413 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,510 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,510 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:30:50,510 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,511 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 106
[2020-09-25 07:30:50,511 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,511 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:50,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,512 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,552 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:30:50,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,554 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,555 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,556 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:50,556 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,556 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:50,556 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,557 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,557 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:50,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,558 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,559 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:30:50,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,561 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,563 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,563 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:50,563 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,564 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:50,564 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,564 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,564 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:50,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,565 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,566 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:30:50,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,568 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,572 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,572 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:50,573 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,573 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:30:50,573 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,574 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:50,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,575 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,576 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:30:50,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,578 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,579 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,579 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:50,580 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,580 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:50,580 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,580 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:50,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,581 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,589 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:30:50,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,592 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,593 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,593 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:30:50,593 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,594 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:50,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,594 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:50,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,595 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,605 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 07:30:50,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,607 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,610 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,610 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:30:50,611 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,611 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:50,611 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,611 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:50,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:50,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:30:50,613 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,615 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 07:30:50,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,618 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,620 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,620 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:50,621 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,621 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:50,621 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,622 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:50,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,623 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,625 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 07:30:50,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:50,628 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,630 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:50,630 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:50,630 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:50,631 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:50,631 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:50,631 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:50,632 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:50,632 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:50,632 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:50,633 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:50,675 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:30:50,676 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882825897]
[2020-09-25 07:30:50,676 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:30:50,677 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 07:30:50,677 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889013637]
[2020-09-25 07:30:50,678 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 07:30:50,678 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:30:50,679 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 07:30:50,679 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 07:30:50,679 INFO  L87              Difference]: Start difference. First operand 259 states and 281 transitions. Second operand 6 states.
[2020-09-25 07:30:51,198 WARN  L193               SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:30:53,486 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:30:53,486 INFO  L93              Difference]: Finished difference Result 631 states and 743 transitions.
[2020-09-25 07:30:53,487 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 07:30:53,487 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 162
[2020-09-25 07:30:53,488 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:30:53,497 INFO  L225             Difference]: With dead ends: 631
[2020-09-25 07:30:53,497 INFO  L226             Difference]: Without dead ends: 487
[2020-09-25 07:30:53,505 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:30:53,507 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 487 states.
[2020-09-25 07:30:53,582 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 393.
[2020-09-25 07:30:53,582 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 393 states.
[2020-09-25 07:30:53,585 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 438 transitions.
[2020-09-25 07:30:53,585 INFO  L78                 Accepts]: Start accepts. Automaton has 393 states and 438 transitions. Word has length 162
[2020-09-25 07:30:53,586 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:30:53,586 INFO  L479      AbstractCegarLoop]: Abstraction has 393 states and 438 transitions.
[2020-09-25 07:30:53,586 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 07:30:53,586 INFO  L276                IsEmpty]: Start isEmpty. Operand 393 states and 438 transitions.
[2020-09-25 07:30:53,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 07:30:53,589 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:30:53,589 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:30:53,589 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 07:30:53,590 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:30:53,590 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:30:53,590 INFO  L82        PathProgramCache]: Analyzing trace with hash -1631970358, now seen corresponding path program 1 times
[2020-09-25 07:30:53,590 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:30:53,591 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087549294]
[2020-09-25 07:30:53,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:30:53,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:53,696 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,503 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:55,487 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:57,780 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:58,670 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:58,670 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 07:30:58,670 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:30:58,671 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5027
[2020-09-25 07:30:58,671 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:58,671 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:58,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:30:58,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 124
[2020-09-25 07:30:58,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 72
[2020-09-25 07:30:58,672 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:59,011 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:30:59,014 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:30:59,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,029 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,113 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,113 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:30:59,113 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,113 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-09-25 07:30:59,114 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,114 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:59,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:59,114 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:30:59,141 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:30:59,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,145 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,145 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:59,145 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,145 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:30:59,145 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,146 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:59,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:59,146 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:59,147 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:30:59,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,149 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,150 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,150 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:59,150 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,150 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:30:59,151 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,151 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:59,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:59,152 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:30:59,153 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:30:59,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,158 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,158 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:59,158 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,158 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:59,158 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,159 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:59,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:59,159 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:30:59,161 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:30:59,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,162 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:59,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,164 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:30:59,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,164 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:59,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:59,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:59,172 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:30:59,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,174 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,176 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,176 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:30:59,177 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,177 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:59,177 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,177 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:59,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:30:59,178 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:59,197 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2020-09-25 07:30:59,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,200 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,202 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,202 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 07:30:59,203 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,203 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:59,203 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,203 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:59,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 07:30:59,204 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:59,207 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-25 07:30:59,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,209 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,212 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,212 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:59,212 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,213 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:59,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,213 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:59,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:30:59,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:30:59,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154
[2020-09-25 07:30:59,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:59,218 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,220 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:59,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:59,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:59,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:59,222 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:59,222 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:59,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:59,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:59,223 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:30:59,223 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:59,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:30:59,257 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087549294]
[2020-09-25 07:30:59,257 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:30:59,257 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 07:30:59,257 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78791965]
[2020-09-25 07:30:59,258 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 07:30:59,258 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:30:59,259 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 07:30:59,259 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 07:30:59,259 INFO  L87              Difference]: Start difference. First operand 393 states and 438 transitions. Second operand 6 states.
[2020-09-25 07:30:59,840 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:31:02,289 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:31:02,289 INFO  L93              Difference]: Finished difference Result 880 states and 1088 transitions.
[2020-09-25 07:31:02,289 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 07:31:02,289 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 167
[2020-09-25 07:31:02,290 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:31:02,297 INFO  L225             Difference]: With dead ends: 880
[2020-09-25 07:31:02,298 INFO  L226             Difference]: Without dead ends: 877
[2020-09-25 07:31:02,299 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:31:02,300 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 877 states.
[2020-09-25 07:31:02,410 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 674.
[2020-09-25 07:31:02,410 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 674 states.
[2020-09-25 07:31:02,415 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 767 transitions.
[2020-09-25 07:31:02,415 INFO  L78                 Accepts]: Start accepts. Automaton has 674 states and 767 transitions. Word has length 167
[2020-09-25 07:31:02,416 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:31:02,416 INFO  L479      AbstractCegarLoop]: Abstraction has 674 states and 767 transitions.
[2020-09-25 07:31:02,416 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 07:31:02,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 674 states and 767 transitions.
[2020-09-25 07:31:02,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2020-09-25 07:31:02,421 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:31:02,422 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2020-09-25 07:31:02,422 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 07:31:02,422 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:31:02,422 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:31:02,423 INFO  L82        PathProgramCache]: Analyzing trace with hash 167656145, now seen corresponding path program 1 times
[2020-09-25 07:31:02,423 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:31:02,423 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715866318]
[2020-09-25 07:31:02,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:31:02,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,535 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,678 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:03,039 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:03,135 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:05,618 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:07,499 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:07,500 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 258
[2020-09-25 07:31:07,500 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:31:07,500 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5022
[2020-09-25 07:31:07,500 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:07,501 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:07,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:31:07,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 157
[2020-09-25 07:31:07,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-25 07:31:07,502 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:07,892 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:31:07,893 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:31:07,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:07,912 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:07,991 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:07,991 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:31:07,991 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:07,991 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 85
[2020-09-25 07:31:07,991 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:07,991 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:07,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:07,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:07,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:07,992 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,012 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:31:08,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,014 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,015 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,015 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:08,015 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,015 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:31:08,015 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,015 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,016 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,017 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:31:08,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,018 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,019 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,020 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,020 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:31:08,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,022 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,024 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,024 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,025 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,027 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:31:08,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,028 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,029 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,029 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:08,029 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,029 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:31:08,030 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,030 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,030 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,038 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:31:08,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,042 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,042 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:31:08,042 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,043 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:08,043 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,043 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,043 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,056 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2020-09-25 07:31:08,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,059 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,063 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,063 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 07:31:08,063 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,063 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:31:08,063 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,064 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:08,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:31:08,064 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,081 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138
[2020-09-25 07:31:08,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,198 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,199 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 07:31:08,199 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:31:08,199 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 112
[2020-09-25 07:31:08,199 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,200 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:31:08,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 07:31:08,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:31:08,200 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,234 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:31:08,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,242 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 36
[2020-09-25 07:31:08,296 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,296 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 56
[2020-09-25 07:31:08,296 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,296 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:31:08,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 32
[2020-09-25 07:31:08,297 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:08,342 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:31:08,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,344 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,345 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:08,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:08,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,347 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,348 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:08,349 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 07:31:08,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,356 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,356 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:08,356 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,357 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:31:08,357 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,357 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 07:31:08,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:08,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 07:31:08,359 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:08,393 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194
[2020-09-25 07:31:08,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,397 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,397 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:08,397 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,398 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:08,398 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,398 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,398 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,398 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:31:08,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,399 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,400 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-25 07:31:08,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:08,403 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:08,404 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:08,404 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:08,404 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:08,404 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:08,405 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:08,405 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:08,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:08,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:31:08,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:08,406 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:08,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-25 07:31:08,455 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715866318]
[2020-09-25 07:31:08,455 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:31:08,455 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-25 07:31:08,455 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835457163]
[2020-09-25 07:31:08,456 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-25 07:31:08,456 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:31:08,457 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-25 07:31:08,457 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182
[2020-09-25 07:31:08,457 INFO  L87              Difference]: Start difference. First operand 674 states and 767 transitions. Second operand 14 states.
[2020-09-25 07:31:08,994 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:31:10,602 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 07:31:10,951 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 07:31:11,344 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 07:31:11,693 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 07:31:12,031 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 07:31:12,869 WARN  L193               SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190
[2020-09-25 07:31:13,523 WARN  L193               SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192
[2020-09-25 07:31:14,161 WARN  L193               SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194
[2020-09-25 07:31:14,845 WARN  L193               SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192
[2020-09-25 07:31:15,466 WARN  L193               SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194