/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:53:08,148 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:53:08,152 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:53:08,197 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:53:08,198 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:53:08,206 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:53:08,208 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:53:08,212 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:53:08,215 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:53:08,218 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:53:08,219 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:53:08,220 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:53:08,220 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:53:08,224 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:53:08,227 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:53:08,229 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:53:08,231 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:53:08,232 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:53:08,234 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:53:08,240 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:53:08,241 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:53:08,242 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:53:08,244 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:53:08,245 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:53:08,259 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:53:08,259 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:53:08,259 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:53:08,265 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:53:08,266 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:53:08,269 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:53:08,270 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:53:08,271 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:53:08,271 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:53:08,275 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:53:08,276 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:53:08,278 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:53:08,279 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:53:08,279 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:53:08,280 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:53:08,281 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:53:08,282 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:53:08,283 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 21:53:08,331 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:53:08,331 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:53:08,334 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:53:08,334 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:53:08,335 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:53:08,335 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:53:08,336 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:53:08,336 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:53:08,336 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:53:08,336 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:53:08,337 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:53:08,338 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:53:08,338 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:53:08,338 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:53:08,339 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:53:08,339 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:53:08,339 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:53:08,339 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:53:08,339 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:53:08,341 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:53:08,342 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:53:08,344 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:53:08,344 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:53:08,345 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:53:08,345 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:53:08,346 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:53:08,346 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:53:08,346 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:53:08,346 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:53:08,346 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:53:08,787 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:53:08,806 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:53:08,810 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:53:08,812 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:53:08,813 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:53:08,814 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c
[2020-09-24 21:53:08,906 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07fc1c35d/9cb5f76ffd9846ac870d1a8205723eb2/FLAG0ac9d85af
[2020-09-24 21:53:09,508 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:53:09,509 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c
[2020-09-24 21:53:09,523 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07fc1c35d/9cb5f76ffd9846ac870d1a8205723eb2/FLAG0ac9d85af
[2020-09-24 21:53:09,777 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07fc1c35d/9cb5f76ffd9846ac870d1a8205723eb2
[2020-09-24 21:53:09,790 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:53:09,795 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:53:09,796 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:53:09,796 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:53:09,800 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:53:09,802 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:53:09" (1/1) ...
[2020-09-24 21:53:09,806 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:09, skipping insertion in model container
[2020-09-24 21:53:09,806 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:53:09" (1/1) ...
[2020-09-24 21:53:09,815 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:53:09,887 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:53:10,228 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:53:10,244 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:53:10,433 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:53:10,464 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:53:10,467 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10 WrapperNode
[2020-09-24 21:53:10,467 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:53:10,468 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:53:10,468 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:53:10,468 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:53:10,482 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
[2020-09-24 21:53:10,483 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
[2020-09-24 21:53:10,498 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
[2020-09-24 21:53:10,499 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
[2020-09-24 21:53:10,526 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
[2020-09-24 21:53:10,541 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
[2020-09-24 21:53:10,546 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
[2020-09-24 21:53:10,552 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:53:10,552 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:53:10,552 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:53:10,553 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:53:10,554 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:53:10,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:53:10,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:53:10,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 21:53:10,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_side1_failed_history
[2020-09-24 21:53:10,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_side1_failed_history
[2020-09-24 21:53:10,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_side2_failed_history
[2020-09-24 21:53:10,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_side2_failed_history
[2020-09-24 21:53:10,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_active_side_history
[2020-09-24 21:53:10,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_active_side_history
[2020-09-24 21:53:10,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_manual_selection_history
[2020-09-24 21:53:10,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_manual_selection_history
[2020-09-24 21:53:10,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure init
[2020-09-24 21:53:10,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure flip_the_side
[2020-09-24 21:53:10,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period
[2020-09-24 21:53:10,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period
[2020-09-24 21:53:10,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period
[2020-09-24 21:53:10,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period
[2020-09-24 21:53:10,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure check
[2020-09-24 21:53:10,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:53:10,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2020-09-24 21:53:10,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:53:10,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2020-09-24 21:53:10,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-09-24 21:53:10,636 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2020-09-24 21:53:10,636 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2020-09-24 21:53:10,637 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2020-09-24 21:53:10,637 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 21:53:10,637 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 21:53:10,637 INFO  L130     BoogieDeclarations]: Found specification of procedure write_side1_failed_history
[2020-09-24 21:53:10,638 INFO  L130     BoogieDeclarations]: Found specification of procedure read_side1_failed_history
[2020-09-24 21:53:10,638 INFO  L130     BoogieDeclarations]: Found specification of procedure write_side2_failed_history
[2020-09-24 21:53:10,638 INFO  L130     BoogieDeclarations]: Found specification of procedure read_side2_failed_history
[2020-09-24 21:53:10,638 INFO  L130     BoogieDeclarations]: Found specification of procedure write_active_side_history
[2020-09-24 21:53:10,638 INFO  L130     BoogieDeclarations]: Found specification of procedure read_active_side_history
[2020-09-24 21:53:10,639 INFO  L130     BoogieDeclarations]: Found specification of procedure write_manual_selection_history
[2020-09-24 21:53:10,639 INFO  L130     BoogieDeclarations]: Found specification of procedure read_manual_selection_history
[2020-09-24 21:53:10,639 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2020-09-24 21:53:10,639 INFO  L130     BoogieDeclarations]: Found specification of procedure flip_the_side
[2020-09-24 21:53:10,639 INFO  L130     BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period
[2020-09-24 21:53:10,639 INFO  L130     BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period
[2020-09-24 21:53:10,640 INFO  L130     BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period
[2020-09-24 21:53:10,640 INFO  L130     BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period
[2020-09-24 21:53:10,640 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2020-09-24 21:53:10,640 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:53:10,640 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:53:10,640 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:53:11,740 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:53:11,740 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 21:53:11,751 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:53:11 BoogieIcfgContainer
[2020-09-24 21:53:11,751 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:53:11,752 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:53:11,752 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:53:11,756 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:53:11,757 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:53:09" (1/3) ...
[2020-09-24 21:53:11,757 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e7008a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:53:11, skipping insertion in model container
[2020-09-24 21:53:11,758 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:10" (2/3) ...
[2020-09-24 21:53:11,758 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e7008a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:53:11, skipping insertion in model container
[2020-09-24 21:53:11,758 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:53:11" (3/3) ...
[2020-09-24 21:53:11,761 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c
[2020-09-24 21:53:11,773 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:53:11,785 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:53:11,805 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:53:11,842 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:53:11,842 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:53:11,842 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:53:11,842 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:53:11,842 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:53:11,842 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:53:11,843 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:53:11,843 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:53:11,875 INFO  L276                IsEmpty]: Start isEmpty. Operand 577 states.
[2020-09-24 21:53:11,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 229
[2020-09-24 21:53:11,896 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:53:11,898 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:53:11,898 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:53:11,904 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:53:11,905 INFO  L82        PathProgramCache]: Analyzing trace with hash -1455574608, now seen corresponding path program 1 times
[2020-09-24 21:53:11,916 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:53:11,917 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162483619]
[2020-09-24 21:53:11,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:53:12,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:12,347 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:12,531 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:12,625 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:12,839 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:13,009 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:13,264 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:14,159 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,199 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:16,199 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 257
[2020-09-24 21:53:16,200 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 7
[2020-09-24 21:53:16,200 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3986
[2020-09-24 21:53:16,205 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:16,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 21:53:16,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 103
[2020-09-24 21:53:16,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 21:53:16,207 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:53:16,534 WARN  L193               SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 21:53:16,536 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:53:16,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:16,557 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,593 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:16,594 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 21:53:16,594 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:16,594 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 43
[2020-09-24 21:53:16,595 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:16,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:16,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:16,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:16,596 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:16,623 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 21:53:16,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:16,629 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,646 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:16,647 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:16,647 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:16,647 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 19
[2020-09-24 21:53:16,647 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:16,647 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 21:53:16,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:16,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 21:53:16,648 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:16,674 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 21:53:16,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:16,679 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,699 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:16,700 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:16,700 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:16,700 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 21:53:16,701 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:16,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 21:53:16,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 21:53:16,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:53:16,702 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:16,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2020-09-24 21:53:16,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:16,806 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,832 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:16,833 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 21:53:16,833 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:16,833 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 33
[2020-09-24 21:53:16,833 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:16,834 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:16,834 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 29
[2020-09-24 21:53:16,834 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:16,835 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:16,863 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 21:53:16,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:16,867 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,874 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:16,874 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:16,875 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:16,875 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 21:53:16,875 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:16,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:16,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:16,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:16,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:16,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-24 21:53:16,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:16,931 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,941 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,949 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:16,989 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:17,007 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:17,008 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:17,008 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 21:53:17,008 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 81
[2020-09-24 21:53:17,009 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:17,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:17,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 22
[2020-09-24 21:53:17,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:17,010 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:17,040 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:17,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:17,045 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:17,049 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:17,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:17,050 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:17,050 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:53:17,050 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:17,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:17,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:17,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:17,071 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 20
[2020-09-24 21:53:17,122 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 21:53:17,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:17,133 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:17,144 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:17,172 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:17,187 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:17,188 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:17,188 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:53:17,188 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 59
[2020-09-24 21:53:17,188 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:17,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:17,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 22
[2020-09-24 21:53:17,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:17,189 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:17,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:17,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:17,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:17,243 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:17,243 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:17,244 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:17,244 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:53:17,245 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:17,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:17,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:17,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:17,246 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:17,341 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:53:17,342 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162483619]
[2020-09-24 21:53:17,345 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:53:17,346 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2020-09-24 21:53:17,347 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069597660]
[2020-09-24 21:53:17,357 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-24 21:53:17,357 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:53:17,385 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-24 21:53:17,386 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182
[2020-09-24 21:53:17,390 INFO  L87              Difference]: Start difference. First operand 577 states. Second operand 14 states.
[2020-09-24 21:53:18,232 WARN  L193               SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 134
[2020-09-24 21:53:18,577 WARN  L193               SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 141
[2020-09-24 21:53:18,783 WARN  L193               SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 145
[2020-09-24 21:53:23,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:53:23,094 INFO  L93              Difference]: Finished difference Result 1058 states and 1321 transitions.
[2020-09-24 21:53:23,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2020-09-24 21:53:23,096 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 228
[2020-09-24 21:53:23,097 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:53:23,134 INFO  L225             Difference]: With dead ends: 1058
[2020-09-24 21:53:23,134 INFO  L226             Difference]: Without dead ends: 581
[2020-09-24 21:53:23,149 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812
[2020-09-24 21:53:23,170 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 581 states.
[2020-09-24 21:53:23,255 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 553.
[2020-09-24 21:53:23,257 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 553 states.
[2020-09-24 21:53:23,261 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 646 transitions.
[2020-09-24 21:53:23,264 INFO  L78                 Accepts]: Start accepts. Automaton has 553 states and 646 transitions. Word has length 228
[2020-09-24 21:53:23,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:53:23,265 INFO  L479      AbstractCegarLoop]: Abstraction has 553 states and 646 transitions.
[2020-09-24 21:53:23,265 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-24 21:53:23,265 INFO  L276                IsEmpty]: Start isEmpty. Operand 553 states and 646 transitions.
[2020-09-24 21:53:23,272 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2020-09-24 21:53:23,272 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:53:23,272 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:53:23,273 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:53:23,273 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:53:23,273 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:53:23,274 INFO  L82        PathProgramCache]: Analyzing trace with hash 503549649, now seen corresponding path program 1 times
[2020-09-24 21:53:23,274 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:53:23,274 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270575304]
[2020-09-24 21:53:23,274 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:53:23,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:23,402 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:23,903 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:23,903 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 268
[2020-09-24 21:53:23,904 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:23,904 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 566
[2020-09-24 21:53:23,904 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:23,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 21:53:23,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 256
[2020-09-24 21:53:23,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:53:23,905 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:24,134 WARN  L193               SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 21:53:24,135 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:53:24,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,147 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,177 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,177 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 21:53:24,178 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,178 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-24 21:53:24,178 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,179 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,179 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,179 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:24,194 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 21:53:24,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,198 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,207 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,207 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 21:53:24,207 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,207 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:53:24,208 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,209 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:24,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111
[2020-09-24 21:53:24,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,216 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,220 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:24,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:53:24,221 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,222 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:24,240 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2020-09-24 21:53:24,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,246 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,267 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,267 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 21:53:24,267 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,268 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-09-24 21:53:24,268 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,269 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:24,287 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 21:53:24,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,290 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,297 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,297 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:24,297 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,297 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:53:24,298 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,299 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:24,330 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159
[2020-09-24 21:53:24,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,356 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,357 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:24,357 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,357 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 21:53:24,357 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,358 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:24,381 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:24,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,384 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,390 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,391 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:24,391 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,391 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:53:24,392 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,393 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:24,428 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192
[2020-09-24 21:53:24,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,435 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,455 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,455 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:24,455 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,455 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-09-24 21:53:24,456 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,457 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:24,482 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:24,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:24,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:24,490 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:24,491 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:24,491 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:24,491 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:53:24,491 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:24,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:24,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:24,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:24,492 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:24,546 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:53:24,546 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270575304]
[2020-09-24 21:53:24,546 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:53:24,547 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-24 21:53:24,547 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706902552]
[2020-09-24 21:53:24,550 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 21:53:24,550 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:53:24,550 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 21:53:24,551 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2020-09-24 21:53:24,551 INFO  L87              Difference]: Start difference. First operand 553 states and 646 transitions. Second operand 11 states.
[2020-09-24 21:53:26,393 WARN  L193               SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 133
[2020-09-24 21:53:26,574 WARN  L193               SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-09-24 21:53:28,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:53:28,193 INFO  L93              Difference]: Finished difference Result 982 states and 1173 transitions.
[2020-09-24 21:53:28,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-24 21:53:28,198 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 239
[2020-09-24 21:53:28,199 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:53:28,203 INFO  L225             Difference]: With dead ends: 982
[2020-09-24 21:53:28,204 INFO  L226             Difference]: Without dead ends: 558
[2020-09-24 21:53:28,207 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552
[2020-09-24 21:53:28,208 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 558 states.
[2020-09-24 21:53:28,246 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558.
[2020-09-24 21:53:28,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 558 states.
[2020-09-24 21:53:28,250 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 650 transitions.
[2020-09-24 21:53:28,251 INFO  L78                 Accepts]: Start accepts. Automaton has 558 states and 650 transitions. Word has length 239
[2020-09-24 21:53:28,252 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:53:28,252 INFO  L479      AbstractCegarLoop]: Abstraction has 558 states and 650 transitions.
[2020-09-24 21:53:28,252 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 21:53:28,253 INFO  L276                IsEmpty]: Start isEmpty. Operand 558 states and 650 transitions.
[2020-09-24 21:53:28,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 313
[2020-09-24 21:53:28,259 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:53:28,260 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:53:28,260 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:53:28,260 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:53:28,260 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:53:28,261 INFO  L82        PathProgramCache]: Analyzing trace with hash -734642201, now seen corresponding path program 1 times
[2020-09-24 21:53:28,261 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:53:28,261 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597170563]
[2020-09-24 21:53:28,262 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:53:28,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:28,400 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:29,132 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:29,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:32,681 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:32,681 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 349
[2020-09-24 21:53:32,681 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:53:32,681 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4352
[2020-09-24 21:53:32,682 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:32,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 21:53:32,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 21:53:32,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 268
[2020-09-24 21:53:32,682 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:32,968 WARN  L193               SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 21:53:32,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:53:32,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:32,990 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,046 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,047 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 21:53:33,047 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,047 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 66
[2020-09-24 21:53:33,047 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,048 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,048 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,048 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 21:53:33,048 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,093 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 21:53:33,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,100 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,118 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,118 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 21:53:33,118 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-09-24 21:53:33,119 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-24 21:53:33,120 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,125 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111
[2020-09-24 21:53:33,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,128 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,137 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,137 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:33,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,138 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:53:33,138 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:53:33,139 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,159 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2020-09-24 21:53:33,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,170 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,206 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,207 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 21:53:33,208 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,208 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 41
[2020-09-24 21:53:33,208 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 21:53:33,209 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,234 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 21:53:33,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,237 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,244 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,244 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:33,244 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,244 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:53:33,245 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:33,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:33,246 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,279 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159
[2020-09-24 21:53:33,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,295 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,345 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,345 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:33,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-09-24 21:53:33,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 21:53:33,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,373 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:33,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,377 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,384 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,384 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:33,384 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,385 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 21:53:33,385 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:33,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:33,386 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,420 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192
[2020-09-24 21:53:33,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,438 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,476 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,476 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:33,476 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,477 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-09-24 21:53:33,477 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 21:53:33,478 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,506 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:33,507 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,509 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,514 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,515 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:33,515 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,515 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:53:33,518 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:33,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:33,519 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:33,545 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225
[2020-09-24 21:53:33,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,557 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,622 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,623 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 21:53:33,623 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,623 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 72
[2020-09-24 21:53:33,623 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:53:33,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 21:53:33,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 40
[2020-09-24 21:53:33,624 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,688 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-09-24 21:53:33,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,692 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,699 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,700 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:53:33,700 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,700 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 21:53:33,700 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:53:33,701 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,726 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-09-24 21:53:33,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,730 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,741 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,741 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:33,741 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,742 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 21:53:33,742 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,742 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:33,742 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:33,742 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 21:53:33,743 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,749 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298
[2020-09-24 21:53:33,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:33,752 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:33,758 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:33,759 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:33,759 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:33,759 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:53:33,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:33,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:33,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 21:53:33,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:33,760 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:33,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-09-24 21:53:33,950 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597170563]
[2020-09-24 21:53:33,950 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:53:33,950 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2020-09-24 21:53:33,951 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375225298]
[2020-09-24 21:53:33,952 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 17 states
[2020-09-24 21:53:33,952 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:53:33,952 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2020-09-24 21:53:33,952 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272
[2020-09-24 21:53:33,953 INFO  L87              Difference]: Start difference. First operand 558 states and 650 transitions. Second operand 17 states.
[2020-09-24 21:53:34,785 WARN  L193               SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 136
[2020-09-24 21:53:37,324 WARN  L193               SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139
[2020-09-24 21:53:37,469 WARN  L193               SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 105
[2020-09-24 21:53:37,604 WARN  L193               SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 101
[2020-09-24 21:53:38,119 WARN  L193               SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92
[2020-09-24 21:53:38,417 WARN  L193               SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 134
[2020-09-24 21:53:40,646 WARN  L193               SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 139
[2020-09-24 21:53:41,240 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:53:41,241 INFO  L93              Difference]: Finished difference Result 1187 states and 1396 transitions.
[2020-09-24 21:53:41,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. 
[2020-09-24 21:53:41,246 INFO  L78                 Accepts]: Start accepts. Automaton has 17 states. Word has length 312
[2020-09-24 21:53:41,247 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:53:41,254 INFO  L225             Difference]: With dead ends: 1187
[2020-09-24 21:53:41,254 INFO  L226             Difference]: Without dead ends: 758
[2020-09-24 21:53:41,257 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=597, Invalid=1755, Unknown=0, NotChecked=0, Total=2352
[2020-09-24 21:53:41,259 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 758 states.
[2020-09-24 21:53:41,304 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 750.
[2020-09-24 21:53:41,305 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 750 states.
[2020-09-24 21:53:41,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 867 transitions.
[2020-09-24 21:53:41,310 INFO  L78                 Accepts]: Start accepts. Automaton has 750 states and 867 transitions. Word has length 312
[2020-09-24 21:53:41,311 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:53:41,311 INFO  L479      AbstractCegarLoop]: Abstraction has 750 states and 867 transitions.
[2020-09-24 21:53:41,311 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 17 states.
[2020-09-24 21:53:41,311 INFO  L276                IsEmpty]: Start isEmpty. Operand 750 states and 867 transitions.
[2020-09-24 21:53:41,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 314
[2020-09-24 21:53:41,317 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:53:41,317 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:53:41,318 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:53:41,318 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:53:41,318 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:53:41,319 INFO  L82        PathProgramCache]: Analyzing trace with hash 679708041, now seen corresponding path program 1 times
[2020-09-24 21:53:41,319 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:53:41,319 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637986369]
[2020-09-24 21:53:41,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:53:41,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:41,488 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:42,014 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:42,516 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:42,704 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:46,458 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:46,459 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 350
[2020-09-24 21:53:46,459 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 21:53:46,459 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5057
[2020-09-24 21:53:46,459 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:46,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 21:53:46,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 21:53:46,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 269
[2020-09-24 21:53:46,460 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:46,700 WARN  L193               SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 21:53:46,701 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:53:46,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:46,737 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:46,798 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:46,799 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 21:53:46,799 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:46,799 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 70
[2020-09-24 21:53:46,799 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:46,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:46,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:46,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 21:53:46,800 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:46,843 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 21:53:46,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:46,851 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:46,869 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:46,870 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 21:53:46,870 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:46,871 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 21:53:46,871 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:46,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:46,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:46,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-24 21:53:46,872 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:46,878 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111
[2020-09-24 21:53:46,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:46,883 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:46,892 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:46,892 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:46,893 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:46,893 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 21:53:46,893 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:46,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:46,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:46,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:53:46,895 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:46,915 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2020-09-24 21:53:46,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:46,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:46,966 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:46,966 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 21:53:46,966 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:46,966 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 43
[2020-09-24 21:53:46,967 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:46,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:46,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:46,996 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 21:53:46,996 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 29
[2020-09-24 21:53:47,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 21:53:47,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,018 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,023 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,024 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:47,024 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,024 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:53:47,024 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:47,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:47,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:47,025 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,056 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159
[2020-09-24 21:53:47,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,069 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,107 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,108 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:47,108 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,108 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-09-24 21:53:47,108 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:47,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:47,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 21:53:47,109 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:47,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,137 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,143 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,143 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:47,143 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,144 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:53:47,144 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:47,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:47,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:47,145 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,180 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192
[2020-09-24 21:53:47,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,194 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,228 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,228 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:47,228 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,228 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 40
[2020-09-24 21:53:47,229 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:47,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:47,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 21:53:47,229 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,257 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:47,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,260 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,266 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,266 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:47,266 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:53:47,267 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:47,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:47,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:47,267 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,292 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225
[2020-09-24 21:53:47,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,303 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,361 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,361 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 42
[2020-09-24 21:53:47,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,362 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 21:53:47,362 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:53:47,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 21:53:47,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 41
[2020-09-24 21:53:47,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,441 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-09-24 21:53:47,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,446 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,454 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,455 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:53:47,455 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,455 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 21:53:47,455 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:47,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:47,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:53:47,456 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,480 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2020-09-24 21:53:47,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,484 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,494 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,494 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:47,494 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,495 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 21:53:47,495 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:47,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:47,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 21:53:47,496 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,500 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299
[2020-09-24 21:53:47,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:47,502 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:47,507 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:47,508 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:47,508 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:47,508 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:53:47,508 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:47,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:47,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 21:53:47,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:47,509 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:47,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-09-24 21:53:47,638 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637986369]
[2020-09-24 21:53:47,639 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:53:47,639 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2020-09-24 21:53:47,639 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66021041]
[2020-09-24 21:53:47,640 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 16 states
[2020-09-24 21:53:47,640 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:53:47,640 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-09-24 21:53:47,641 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240
[2020-09-24 21:53:47,641 INFO  L87              Difference]: Start difference. First operand 750 states and 867 transitions. Second operand 16 states.
[2020-09-24 21:53:47,762 WARN  L193               SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102
[2020-09-24 21:53:48,361 WARN  L193               SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 134
[2020-09-24 21:53:49,118 WARN  L193               SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 136
[2020-09-24 21:53:49,294 WARN  L193               SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2020-09-24 21:53:50,848 WARN  L193               SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 138
[2020-09-24 21:53:50,989 WARN  L193               SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2020-09-24 21:53:51,336 WARN  L193               SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 21:53:53,717 WARN  L193               SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 101
[2020-09-24 21:53:53,845 WARN  L193               SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 102
[2020-09-24 21:53:53,976 WARN  L193               SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2020-09-24 21:53:54,933 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:53:54,933 INFO  L93              Difference]: Finished difference Result 1210 states and 1428 transitions.
[2020-09-24 21:53:54,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. 
[2020-09-24 21:53:54,934 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states. Word has length 313
[2020-09-24 21:53:54,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:53:54,939 INFO  L225             Difference]: With dead ends: 1210
[2020-09-24 21:53:54,939 INFO  L226             Difference]: Without dead ends: 774
[2020-09-24 21:53:54,941 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=692, Invalid=1960, Unknown=0, NotChecked=0, Total=2652
[2020-09-24 21:53:54,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 774 states.
[2020-09-24 21:53:54,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 768.
[2020-09-24 21:53:54,982 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 768 states.
[2020-09-24 21:53:54,986 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 887 transitions.
[2020-09-24 21:53:54,986 INFO  L78                 Accepts]: Start accepts. Automaton has 768 states and 887 transitions. Word has length 313
[2020-09-24 21:53:54,987 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:53:54,987 INFO  L479      AbstractCegarLoop]: Abstraction has 768 states and 887 transitions.
[2020-09-24 21:53:54,987 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 16 states.
[2020-09-24 21:53:54,987 INFO  L276                IsEmpty]: Start isEmpty. Operand 768 states and 887 transitions.
[2020-09-24 21:53:54,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 316
[2020-09-24 21:53:54,993 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:53:54,993 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:53:54,993 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 21:53:54,993 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:53:54,994 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:53:54,994 INFO  L82        PathProgramCache]: Analyzing trace with hash 1399853749, now seen corresponding path program 1 times
[2020-09-24 21:53:54,994 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:53:54,994 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045909934]
[2020-09-24 21:53:54,995 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:53:55,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:55,124 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:55,254 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:56,512 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,071 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,071 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 352
[2020-09-24 21:53:59,072 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:53:59,072 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4014
[2020-09-24 21:53:59,072 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,072 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:53:59,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 139
[2020-09-24 21:53:59,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 138
[2020-09-24 21:53:59,073 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:59,271 WARN  L193               SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 21:53:59,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:53:59,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,284 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,313 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,313 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 21:53:59,313 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,313 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 35
[2020-09-24 21:53:59,314 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:59,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:59,315 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:59,329 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 21:53:59,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,333 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,342 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 21:53:59,342 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:53:59,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:59,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:59,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:59,377 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111
[2020-09-24 21:53:59,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,383 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:53:59,384 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,384 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:53:59,384 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:59,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:59,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:59,400 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2020-09-24 21:53:59,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,411 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,444 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,444 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 21:53:59,444 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,445 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 37
[2020-09-24 21:53:59,445 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:59,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 21:53:59,446 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:59,464 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 21:53:59,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,467 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,473 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,473 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:59,473 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,474 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:53:59,474 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:59,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:59,475 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:53:59,505 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159
[2020-09-24 21:53:59,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,561 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,561 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:59,562 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,562 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-24 21:53:59,562 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:59,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 21:53:59,564 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:59,595 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:59,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,598 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,601 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,601 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:59,602 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,602 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:53:59,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:59,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:59,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:59,653 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192
[2020-09-24 21:53:59,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,669 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,708 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,709 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 21:53:59,709 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,709 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-24 21:53:59,710 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:59,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 21:53:59,711 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:59,742 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 21:53:59,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,745 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,751 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,752 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:53:59,752 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,752 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:53:59,753 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:53:59,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:53:59,754 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:59,790 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225
[2020-09-24 21:53:59,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,804 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,873 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,873 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 21:53:59,874 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,874 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 76
[2020-09-24 21:53:59,874 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:53:59,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 21:53:59,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 43
[2020-09-24 21:53:59,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:59,939 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-09-24 21:53:59,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,944 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:53:59,956 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:53:59,956 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:53:59,957 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:53:59,957 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 21:53:59,958 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:53:59,958 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:53:59,958 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:53:59,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:53:59,959 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:53:59,990 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 21:53:59,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:53:59,996 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:54:00,007 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:54:00,008 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 21:54:00,008 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:54:00,008 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 21:54:00,009 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:54:00,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:54:00,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:54:00,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 21:54:00,010 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:54:00,016 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301
[2020-09-24 21:54:00,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:54:00,021 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:54:00,025 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:54:00,025 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:54:00,025 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:54:00,026 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:54:00,026 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:54:00,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:54:00,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 21:54:00,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:54:00,027 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1