/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=HIGHLEXORDER --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.UNBOUNDED.pals.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 22:58:05,981 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 22:58:05,986 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 22:58:06,012 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 22:58:06,012 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 22:58:06,013 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 22:58:06,015 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 22:58:06,016 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 22:58:06,018 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 22:58:06,020 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 22:58:06,021 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 22:58:06,022 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 22:58:06,023 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 22:58:06,032 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 22:58:06,033 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 22:58:06,036 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 22:58:06,037 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 22:58:06,038 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 22:58:06,043 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 22:58:06,048 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 22:58:06,050 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 22:58:06,053 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 22:58:06,055 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 22:58:06,056 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 22:58:06,063 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 22:58:06,063 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 22:58:06,063 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 22:58:06,066 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 22:58:06,066 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 22:58:06,068 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 22:58:06,069 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 22:58:06,070 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 22:58:06,071 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 22:58:06,072 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 22:58:06,073 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 22:58:06,073 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 22:58:06,084 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 22:58:06,084 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 22:58:06,084 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 22:58:06,086 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 22:58:06,087 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 22:58:06,089 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 22:58:06,135 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 22:58:06,135 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 22:58:06,137 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 22:58:06,138 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 22:58:06,138 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 22:58:06,138 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 22:58:06,139 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 22:58:06,139 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 22:58:06,139 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 22:58:06,139 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 22:58:06,140 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 22:58:06,140 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 22:58:06,141 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 22:58:06,141 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 22:58:06,141 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 22:58:06,141 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 22:58:06,142 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 22:58:06,142 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 22:58:06,142 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 22:58:06,142 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 22:58:06,143 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 22:58:06,143 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:58:06,143 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 22:58:06,143 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 22:58:06,143 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 22:58:06,144 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 22:58:06,144 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 22:58:06,144 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 22:58:06,144 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 22:58:06,144 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true;
[2020-09-24 22:58:06,631 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 22:58:06,658 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 22:58:06,662 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 22:58:06,665 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 22:58:06,666 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 22:58:06,667 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c
[2020-09-24 22:58:06,760 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563d43b02/1aa3554725164a25ac7ef8b9dff5285f/FLAG2fff3fa4b
[2020-09-24 22:58:07,337 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 22:58:07,338 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c
[2020-09-24 22:58:07,357 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563d43b02/1aa3554725164a25ac7ef8b9dff5285f/FLAG2fff3fa4b
[2020-09-24 22:58:07,619 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563d43b02/1aa3554725164a25ac7ef8b9dff5285f
[2020-09-24 22:58:07,634 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 22:58:07,640 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 22:58:07,641 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 22:58:07,641 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 22:58:07,647 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 22:58:07,648 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:58:07" (1/1) ...
[2020-09-24 22:58:07,653 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:07, skipping insertion in model container
[2020-09-24 22:58:07,653 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:58:07" (1/1) ...
[2020-09-24 22:58:07,663 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 22:58:07,741 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 22:58:08,070 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:58:08,085 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 22:58:08,292 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:58:08,318 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 22:58:08,319 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08 WrapperNode
[2020-09-24 22:58:08,319 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 22:58:08,320 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 22:58:08,320 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 22:58:08,320 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 22:58:08,336 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ...
[2020-09-24 22:58:08,337 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ...
[2020-09-24 22:58:08,352 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ...
[2020-09-24 22:58:08,352 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ...
[2020-09-24 22:58:08,372 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ...
[2020-09-24 22:58:08,387 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ...
[2020-09-24 22:58:08,392 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ...
[2020-09-24 22:58:08,398 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 22:58:08,398 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 22:58:08,399 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 22:58:08,399 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 22:58:08,400 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (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 22:58:08,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 22:58:08,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 22:58:08,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 22:58:08,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_side1_failed_history
[2020-09-24 22:58:08,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_side1_failed_history
[2020-09-24 22:58:08,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_side2_failed_history
[2020-09-24 22:58:08,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_side2_failed_history
[2020-09-24 22:58:08,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_active_side_history
[2020-09-24 22:58:08,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_active_side_history
[2020-09-24 22:58:08,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure write_manual_selection_history
[2020-09-24 22:58:08,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure read_manual_selection_history
[2020-09-24 22:58:08,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure init
[2020-09-24 22:58:08,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure flip_the_side
[2020-09-24 22:58:08,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period
[2020-09-24 22:58:08,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period
[2020-09-24 22:58:08,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period
[2020-09-24 22:58:08,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period
[2020-09-24 22:58:08,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure check
[2020-09-24 22:58:08,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 22:58:08,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2020-09-24 22:58:08,489 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 22:58:08,489 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2020-09-24 22:58:08,489 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-09-24 22:58:08,489 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2020-09-24 22:58:08,489 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2020-09-24 22:58:08,490 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2020-09-24 22:58:08,490 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 22:58:08,490 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 22:58:08,490 INFO  L130     BoogieDeclarations]: Found specification of procedure write_side1_failed_history
[2020-09-24 22:58:08,490 INFO  L130     BoogieDeclarations]: Found specification of procedure read_side1_failed_history
[2020-09-24 22:58:08,490 INFO  L130     BoogieDeclarations]: Found specification of procedure write_side2_failed_history
[2020-09-24 22:58:08,491 INFO  L130     BoogieDeclarations]: Found specification of procedure read_side2_failed_history
[2020-09-24 22:58:08,491 INFO  L130     BoogieDeclarations]: Found specification of procedure write_active_side_history
[2020-09-24 22:58:08,491 INFO  L130     BoogieDeclarations]: Found specification of procedure read_active_side_history
[2020-09-24 22:58:08,491 INFO  L130     BoogieDeclarations]: Found specification of procedure write_manual_selection_history
[2020-09-24 22:58:08,491 INFO  L130     BoogieDeclarations]: Found specification of procedure read_manual_selection_history
[2020-09-24 22:58:08,492 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2020-09-24 22:58:08,492 INFO  L130     BoogieDeclarations]: Found specification of procedure flip_the_side
[2020-09-24 22:58:08,492 INFO  L130     BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period
[2020-09-24 22:58:08,492 INFO  L130     BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period
[2020-09-24 22:58:08,492 INFO  L130     BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period
[2020-09-24 22:58:08,492 INFO  L130     BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period
[2020-09-24 22:58:08,493 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2020-09-24 22:58:08,493 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 22:58:08,493 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 22:58:08,493 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 22:58:09,619 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 22:58:09,620 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 22:58:09,630 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:58:09 BoogieIcfgContainer
[2020-09-24 22:58:09,630 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 22:58:09,632 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 22:58:09,632 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 22:58:09,636 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 22:58:09,636 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:58:07" (1/3) ...
[2020-09-24 22:58:09,637 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f239704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:58:09, skipping insertion in model container
[2020-09-24 22:58:09,637 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (2/3) ...
[2020-09-24 22:58:09,638 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f239704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:58:09, skipping insertion in model container
[2020-09-24 22:58:09,638 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:58:09" (3/3) ...
[2020-09-24 22:58:09,640 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c
[2020-09-24 22:58:09,651 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 22:58:09,663 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 22:58:09,687 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 22:58:09,723 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 22:58:09,723 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 22:58:09,723 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 22:58:09,724 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 22:58:09,724 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 22:58:09,724 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 22:58:09,724 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 22:58:09,724 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 22:58:09,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 574 states.
[2020-09-24 22:58:09,781 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 229
[2020-09-24 22:58:09,782 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:58:09,783 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 22:58:09,784 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:58:09,792 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:58:09,793 INFO  L82        PathProgramCache]: Analyzing trace with hash -182402980, now seen corresponding path program 1 times
[2020-09-24 22:58:09,805 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:58:09,805 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685493002]
[2020-09-24 22:58:09,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:58:10,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:10,326 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:10,498 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:10,588 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:10,814 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:11,013 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:11,212 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:11,409 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:12,091 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:14,244 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:14,246 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 257
[2020-09-24 22:58:14,246 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-24 22:58:14,246 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4096
[2020-09-24 22:58:14,251 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:14,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 22:58:14,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 245
[2020-09-24 22:58:14,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:58:14,253 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 22:58:14,658 WARN  L193               SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 22:58:14,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:58:14,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:14,707 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:14,755 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:14,756 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 22:58:14,756 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:14,756 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 68
[2020-09-24 22:58:14,757 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:14,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:14,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:14,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:14,757 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:14,789 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 22:58:14,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:14,794 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:14,800 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:14,801 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:14,801 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:14,801 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:14,802 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:14,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:14,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:14,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:14,803 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:14,808 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 22:58:14,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:14,812 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:14,820 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:14,821 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:14,825 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:14,825 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:58:14,826 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:14,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:14,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:14,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:14,827 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:14,853 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2020-09-24 22:58:14,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:14,860 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:14,886 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:14,886 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 22:58:14,887 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:14,888 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 28
[2020-09-24 22:58:14,888 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:14,896 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:14,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:14,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:14,898 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-24 22:58:14,925 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 22:58:14,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:14,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:14,937 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:14,937 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:14,937 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:14,938 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:58:14,938 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:14,938 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:14,938 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:14,939 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:14,940 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:14,988 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-24 22:58:14,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:15,001 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,010 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,039 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,086 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:15,087 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:15,087 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 22:58:15,087 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 92
[2020-09-24 22:58:15,088 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:15,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:15,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 30
[2020-09-24 22:58:15,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:15,089 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:15,122 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:15,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:15,127 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,134 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:15,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:15,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:15,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:58:15,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:15,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:15,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:15,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:15,136 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:15,183 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 22:58:15,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:15,191 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,201 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,211 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:15,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:15,269 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 22:58:15,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 81
[2020-09-24 22:58:15,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:15,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:15,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 30
[2020-09-24 22:58:15,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:15,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:15,334 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:15,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:15,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:15,343 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:15,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:15,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:15,344 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:58:15,344 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:15,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:15,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:15,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:15,345 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:15,410 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 22:58:15,411 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685493002]
[2020-09-24 22:58:15,414 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:58:15,414 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-24 22:58:15,415 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406113091]
[2020-09-24 22:58:15,423 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 22:58:15,424 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:58:15,444 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 22:58:15,445 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2020-09-24 22:58:15,448 INFO  L87              Difference]: Start difference. First operand 574 states. Second operand 11 states.
[2020-09-24 22:58:17,965 WARN  L193               SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 134
[2020-09-24 22:58:18,130 WARN  L193               SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 139
[2020-09-24 22:58:19,295 WARN  L193               SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-09-24 22:58:20,022 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:58:20,022 INFO  L93              Difference]: Finished difference Result 1020 states and 1270 transitions.
[2020-09-24 22:58:20,023 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2020-09-24 22:58:20,024 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 228
[2020-09-24 22:58:20,026 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:58:20,047 INFO  L225             Difference]: With dead ends: 1020
[2020-09-24 22:58:20,047 INFO  L226             Difference]: Without dead ends: 569
[2020-09-24 22:58:20,056 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600
[2020-09-24 22:58:20,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 569 states.
[2020-09-24 22:58:20,166 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567.
[2020-09-24 22:58:20,168 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 567 states.
[2020-09-24 22:58:20,172 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 671 transitions.
[2020-09-24 22:58:20,175 INFO  L78                 Accepts]: Start accepts. Automaton has 567 states and 671 transitions. Word has length 228
[2020-09-24 22:58:20,176 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:58:20,176 INFO  L479      AbstractCegarLoop]: Abstraction has 567 states and 671 transitions.
[2020-09-24 22:58:20,176 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 22:58:20,176 INFO  L276                IsEmpty]: Start isEmpty. Operand 567 states and 671 transitions.
[2020-09-24 22:58:20,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 302
[2020-09-24 22:58:20,185 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:58:20,186 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]
[2020-09-24 22:58:20,186 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 22:58:20,187 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:58:20,187 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:58:20,187 INFO  L82        PathProgramCache]: Analyzing trace with hash -1715458180, now seen corresponding path program 1 times
[2020-09-24 22:58:20,187 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:58:20,188 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335785661]
[2020-09-24 22:58:20,188 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:58:20,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:20,281 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:20,419 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:23,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:24,182 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,282 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,283 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 338
[2020-09-24 22:58:25,283 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 22:58:25,284 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5049
[2020-09-24 22:58:25,284 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 22:58:25,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 326
[2020-09-24 22:58:25,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 22:58:25,285 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:25,591 WARN  L193               SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 22:58:25,592 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:58:25,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,608 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,648 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,648 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 22:58:25,648 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,649 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-24 22:58:25,649 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,650 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:25,665 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 22:58:25,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,668 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,680 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,680 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:25,680 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,680 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 22:58:25,681 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,681 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:25,684 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 22:58:25,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,686 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,691 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,691 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:25,691 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,692 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:58:25,692 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,693 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:25,712 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2020-09-24 22:58:25,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,718 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,740 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,740 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 22:58:25,740 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,741 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 25
[2020-09-24 22:58:25,741 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,741 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,741 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,741 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,742 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:25,761 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 22:58:25,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,764 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,770 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,771 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:25,771 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,771 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:25,771 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,772 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,772 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,772 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:25,805 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-24 22:58:25,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,811 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,830 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,831 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:25,831 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,831 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 22:58:25,832 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,832 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:25,857 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:25,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,862 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,868 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,868 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:25,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,868 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:25,869 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,869 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:25,907 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 22:58:25,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,913 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,932 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,933 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:25,933 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,933 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 22:58:25,934 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,934 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:25,962 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:25,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:25,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:25,972 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:25,972 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:25,972 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:25,973 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:25,973 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:25,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:25,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:25,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:25,974 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:26,000 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214
[2020-09-24 22:58:26,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:26,006 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:26,024 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:26,024 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 22:58:26,025 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:26,025 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-09-24 22:58:26,025 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:26,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:26,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:26,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:26,026 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:26,035 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-09-24 22:58:26,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:26,038 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:26,043 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:26,044 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:26,044 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:26,044 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:58:26,045 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:26,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:26,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:26,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:26,045 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:26,068 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-09-24 22:58:26,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:26,072 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:26,078 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:26,079 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:26,079 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:26,079 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:26,079 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:26,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:26,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:26,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:26,080 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:26,084 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287
[2020-09-24 22:58:26,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:26,087 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:26,092 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:26,092 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:26,092 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:26,093 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:58:26,093 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:26,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:26,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:26,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:26,095 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:26,184 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 22:58:26,185 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335785661]
[2020-09-24 22:58:26,185 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:58:26,185 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-24 22:58:26,186 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611269874]
[2020-09-24 22:58:26,190 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 22:58:26,190 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:58:26,190 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 22:58:26,191 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2020-09-24 22:58:26,191 INFO  L87              Difference]: Start difference. First operand 567 states and 671 transitions. Second operand 13 states.
[2020-09-24 22:58:28,540 WARN  L193               SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 22:58:29,154 WARN  L193               SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 134
[2020-09-24 22:58:29,364 WARN  L193               SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 145
[2020-09-24 22:58:30,725 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:58:30,726 INFO  L93              Difference]: Finished difference Result 999 states and 1197 transitions.
[2020-09-24 22:58:30,726 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2020-09-24 22:58:30,727 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 301
[2020-09-24 22:58:30,729 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:58:30,734 INFO  L225             Difference]: With dead ends: 999
[2020-09-24 22:58:30,734 INFO  L226             Difference]: Without dead ends: 573
[2020-09-24 22:58:30,737 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930
[2020-09-24 22:58:30,739 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 573 states.
[2020-09-24 22:58:30,781 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573.
[2020-09-24 22:58:30,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 573 states.
[2020-09-24 22:58:30,785 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 676 transitions.
[2020-09-24 22:58:30,786 INFO  L78                 Accepts]: Start accepts. Automaton has 573 states and 676 transitions. Word has length 301
[2020-09-24 22:58:30,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:58:30,787 INFO  L479      AbstractCegarLoop]: Abstraction has 573 states and 676 transitions.
[2020-09-24 22:58:30,787 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 22:58:30,787 INFO  L276                IsEmpty]: Start isEmpty. Operand 573 states and 676 transitions.
[2020-09-24 22:58:30,794 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 313
[2020-09-24 22:58:30,794 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:58:30,794 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 22:58:30,794 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 22:58:30,795 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:58:30,795 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:58:30,795 INFO  L82        PathProgramCache]: Analyzing trace with hash -160047041, now seen corresponding path program 1 times
[2020-09-24 22:58:30,795 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:58:30,796 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039302825]
[2020-09-24 22:58:30,796 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:58:30,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:30,914 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:31,032 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:34,427 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:34,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:35,918 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:35,918 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 351
[2020-09-24 22:58:35,918 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 22:58:35,919 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5049
[2020-09-24 22:58:35,919 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:35,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 22:58:35,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 339
[2020-09-24 22:58:35,920 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 22:58:35,920 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,165 WARN  L193               SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 22:58:36,166 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:58:36,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,176 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,206 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,207 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 22:58:36,207 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,207 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-24 22:58:36,208 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,208 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,225 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 22:58:36,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,228 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,233 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,233 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:36,234 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,234 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:58:36,234 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,235 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,237 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 22:58:36,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,240 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,245 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,246 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:36,246 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,246 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:58:36,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,247 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,267 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2020-09-24 22:58:36,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,272 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,292 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,293 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 22:58:36,293 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,293 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 22:58:36,293 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,294 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,313 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 22:58:36,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,324 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,324 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:36,324 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,324 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:36,325 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,325 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,362 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-24 22:58:36,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,372 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,391 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,392 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:36,392 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,392 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-24 22:58:36,393 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,394 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,394 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:36,423 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:36,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,426 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,432 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,433 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:36,433 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,433 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:36,433 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,434 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,470 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 22:58:36,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,480 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,498 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,498 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:36,499 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,499 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-09-24 22:58:36,499 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,500 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,525 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:36,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,529 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,536 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,536 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:36,536 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:36,537 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,538 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,563 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214
[2020-09-24 22:58:36,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,569 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,582 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,582 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 22:58:36,582 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,583 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-24 22:58:36,583 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,584 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,590 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-09-24 22:58:36,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,593 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,598 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,598 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:36,598 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,598 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:58:36,599 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,599 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,599 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,599 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,599 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:36,622 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-09-24 22:58:36,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,625 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,631 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,631 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:36,632 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,632 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:36,632 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,634 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:36,640 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287
[2020-09-24 22:58:36,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,642 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,649 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:36,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,650 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:36,650 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,651 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:36,654 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292
[2020-09-24 22:58:36,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:36,658 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:36,664 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:36,664 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:36,664 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:36,665 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:36,665 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:36,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:36,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:36,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:36,666 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:36,905 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 22:58:36,906 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039302825]
[2020-09-24 22:58:36,906 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:58:36,906 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-24 22:58:36,907 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396613221]
[2020-09-24 22:58:36,908 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 22:58:36,908 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:58:36,908 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 22:58:36,909 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2020-09-24 22:58:36,909 INFO  L87              Difference]: Start difference. First operand 573 states and 676 transitions. Second operand 13 states.
[2020-09-24 22:58:37,036 WARN  L193               SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97
[2020-09-24 22:58:40,087 WARN  L193               SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 134
[2020-09-24 22:58:40,291 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 143
[2020-09-24 22:58:41,433 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:58:41,433 INFO  L93              Difference]: Finished difference Result 1011 states and 1210 transitions.
[2020-09-24 22:58:41,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2020-09-24 22:58:41,434 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 312
[2020-09-24 22:58:41,436 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:58:41,440 INFO  L225             Difference]: With dead ends: 1011
[2020-09-24 22:58:41,441 INFO  L226             Difference]: Without dead ends: 579
[2020-09-24 22:58:41,443 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930
[2020-09-24 22:58:41,444 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 579 states.
[2020-09-24 22:58:41,474 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579.
[2020-09-24 22:58:41,475 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 579 states.
[2020-09-24 22:58:41,478 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 681 transitions.
[2020-09-24 22:58:41,479 INFO  L78                 Accepts]: Start accepts. Automaton has 579 states and 681 transitions. Word has length 312
[2020-09-24 22:58:41,480 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:58:41,480 INFO  L479      AbstractCegarLoop]: Abstraction has 579 states and 681 transitions.
[2020-09-24 22:58:41,480 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 22:58:41,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 579 states and 681 transitions.
[2020-09-24 22:58:41,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 323
[2020-09-24 22:58:41,486 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:58:41,487 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:41,487 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 22:58:41,487 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:58:41,487 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:58:41,487 INFO  L82        PathProgramCache]: Analyzing trace with hash -17901918, now seen corresponding path program 1 times
[2020-09-24 22:58:41,488 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:58:41,488 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626221877]
[2020-09-24 22:58:41,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:58:41,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:41,573 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:41,698 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:42,265 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:46,541 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:46,542 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 363
[2020-09-24 22:58:46,542 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 22:58:46,542 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5012
[2020-09-24 22:58:46,542 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:46,542 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:46,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 184
[2020-09-24 22:58:46,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 133
[2020-09-24 22:58:46,543 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:46,832 WARN  L193               SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 130
[2020-09-24 22:58:46,833 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:58:46,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:46,846 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:46,879 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:46,880 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 22:58:46,880 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:46,880 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 40
[2020-09-24 22:58:46,881 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:46,881 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:46,881 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:46,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:46,882 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:46,901 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-24 22:58:46,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:46,904 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:46,909 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:46,909 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:46,909 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:46,910 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:58:46,910 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:46,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:46,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:46,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:46,911 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:46,914 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 22:58:46,915 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:46,917 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:46,922 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:46,922 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:46,922 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:46,923 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:58:46,923 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:46,923 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:46,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:46,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:46,924 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:46,947 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2020-09-24 22:58:46,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:46,954 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:46,971 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:46,972 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 22:58:46,972 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:46,972 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-09-24 22:58:46,973 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:46,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:46,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:46,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:46,974 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:46,995 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 22:58:46,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:46,999 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,005 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,005 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:47,005 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,006 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:47,006 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,007 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,052 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-24 22:58:47,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,069 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,108 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,108 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:47,108 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,109 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-24 22:58:47,109 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:47,110 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,110 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-24 22:58:47,110 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:47,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,160 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,161 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:47,161 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,162 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:47,162 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,163 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,214 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 22:58:47,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,235 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,281 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:58:47,281 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 53
[2020-09-24 22:58:47,282 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:47,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 22:58:47,283 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,319 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:58:47,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,328 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,329 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:47,329 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,329 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:47,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,331 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,366 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214
[2020-09-24 22:58:47,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,381 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,413 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,414 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 22:58:47,414 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,414 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 39
[2020-09-24 22:58:47,415 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:47,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,416 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 37
[2020-09-24 22:58:47,416 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,425 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-09-24 22:58:47,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,428 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,434 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,435 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:47,435 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,435 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:47,436 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,437 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,468 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-09-24 22:58:47,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,472 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,479 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:47,479 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,480 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:47,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:47,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,486 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287
[2020-09-24 22:58:47,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,489 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,496 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,497 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:47,497 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,497 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:47,498 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 22:58:47,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,499 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,502 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292
[2020-09-24 22:58:47,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,506 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,513 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,513 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:47,513 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,514 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:47,514 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-24 22:58:47,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,515 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:47,518 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303
[2020-09-24 22:58:47,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:47,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:47,525 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:47,525 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 22:58:47,525 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:47,526 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 22:58:47,526 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:47,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:47,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-24 22:58:47,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:47,527 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:47,689 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-09-24 22:58:47,689 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626221877]
[2020-09-24 22:58:47,689 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:58:47,690 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-09-24 22:58:47,690 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921264968]
[2020-09-24 22:58:47,691 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-24 22:58:47,691 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:58:47,691 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-24 22:58:47,692 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2020-09-24 22:58:47,692 INFO  L87              Difference]: Start difference. First operand 579 states and 681 transitions. Second operand 12 states.
[2020-09-24 22:58:49,430 WARN  L193               SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-09-24 22:58:53,343 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:58:53,344 INFO  L93              Difference]: Finished difference Result 1393 states and 1665 transitions.
[2020-09-24 22:58:53,344 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. 
[2020-09-24 22:58:53,344 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 322
[2020-09-24 22:58:53,346 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:58:53,353 INFO  L225             Difference]: With dead ends: 1393
[2020-09-24 22:58:53,353 INFO  L226             Difference]: Without dead ends: 955
[2020-09-24 22:58:53,356 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190
[2020-09-24 22:58:53,357 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 955 states.
[2020-09-24 22:58:53,432 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 916.
[2020-09-24 22:58:53,432 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 916 states.
[2020-09-24 22:58:53,437 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1094 transitions.
[2020-09-24 22:58:53,437 INFO  L78                 Accepts]: Start accepts. Automaton has 916 states and 1094 transitions. Word has length 322
[2020-09-24 22:58:53,438 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:58:53,438 INFO  L479      AbstractCegarLoop]: Abstraction has 916 states and 1094 transitions.
[2020-09-24 22:58:53,439 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-24 22:58:53,439 INFO  L276                IsEmpty]: Start isEmpty. Operand 916 states and 1094 transitions.
[2020-09-24 22:58:53,442 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 332
[2020-09-24 22:58:53,442 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:58:53,443 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:53,443 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 22:58:53,443 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:58:53,444 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:58:53,444 INFO  L82        PathProgramCache]: Analyzing trace with hash -2141396202, now seen corresponding path program 1 times
[2020-09-24 22:58:53,444 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:58:53,444 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302960788]
[2020-09-24 22:58:53,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:58:53,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:53,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:53,641 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:53,781 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:54,102 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:54,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...