/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c


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


This is Ultimate 0.1.25-177f698
[2020-08-21 14:16:39,274 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-21 14:16:39,276 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-21 14:16:39,300 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-21 14:16:39,300 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-21 14:16:39,302 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-21 14:16:39,303 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-21 14:16:39,305 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-21 14:16:39,306 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-21 14:16:39,307 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-21 14:16:39,308 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-08-21 14:16:39,309 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-21 14:16:39,309 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-21 14:16:39,310 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-21 14:16:39,311 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-21 14:16:39,312 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-21 14:16:39,313 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-21 14:16:39,314 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-21 14:16:39,316 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-21 14:16:39,318 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-21 14:16:39,319 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-21 14:16:39,320 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-21 14:16:39,321 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-21 14:16:39,322 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-21 14:16:39,324 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-21 14:16:39,325 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-21 14:16:39,325 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-21 14:16:39,326 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-21 14:16:39,326 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-21 14:16:39,327 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-21 14:16:39,328 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-21 14:16:39,328 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-21 14:16:39,329 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-21 14:16:39,330 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-21 14:16:39,331 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-21 14:16:39,331 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-21 14:16:39,332 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-21 14:16:39,332 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-21 14:16:39,332 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-21 14:16:39,333 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-21 14:16:39,334 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-21 14:16:39,335 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
[2020-08-21 14:16:39,360 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-21 14:16:39,361 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-21 14:16:39,362 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-21 14:16:39,362 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-08-21 14:16:39,362 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-08-21 14:16:39,362 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-21 14:16:39,363 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-21 14:16:39,363 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-21 14:16:39,363 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-21 14:16:39,363 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-21 14:16:39,363 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-21 14:16:39,364 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-21 14:16:39,364 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-21 14:16:39,364 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-21 14:16:39,364 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-21 14:16:39,364 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-21 14:16:39,365 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-21 14:16:39,365 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-21 14:16:39,365 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-08-21 14:16:39,365 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-21 14:16:39,365 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-21 14:16:39,366 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-21 14:16:39,366 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-21 14:16:39,366 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-08-21 14:16:39,366 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-21 14:16:39,367 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-08-21 14:16:39,367 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-21 14:16:39,367 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-21 14:16:39,367 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-08-21 14:16:39,367 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.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> log-additional-information=true;
[2020-08-21 14:16:39,683 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-21 14:16:39,695 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-21 14:16:39,698 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-21 14:16:39,700 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-21 14:16:39,700 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-21 14:16:39,701 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c
[2020-08-21 14:16:39,763 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c49923542/e9918dece7fe48fb8f7e4d6bb3a70546/FLAGf74ffa906
[2020-08-21 14:16:40,269 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-21 14:16:40,269 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c
[2020-08-21 14:16:40,285 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c49923542/e9918dece7fe48fb8f7e4d6bb3a70546/FLAGf74ffa906
[2020-08-21 14:16:40,583 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c49923542/e9918dece7fe48fb8f7e4d6bb3a70546
[2020-08-21 14:16:40,592 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-21 14:16:40,594 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-21 14:16:40,595 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-21 14:16:40,595 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-21 14:16:40,600 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-21 14:16:40,601 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:16:40" (1/1) ...
[2020-08-21 14:16:40,604 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424d9305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:40, skipping insertion in model container
[2020-08-21 14:16:40,604 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:16:40" (1/1) ...
[2020-08-21 14:16:40,612 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-21 14:16:40,675 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-21 14:16:41,001 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-21 14:16:41,010 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-21 14:16:41,252 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-21 14:16:41,287 INFO  L208         MainTranslator]: Completed translation
[2020-08-21 14:16:41,288 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41 WrapperNode
[2020-08-21 14:16:41,288 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-21 14:16:41,289 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-21 14:16:41,289 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-21 14:16:41,289 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-21 14:16:41,301 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (1/1) ...
[2020-08-21 14:16:41,301 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (1/1) ...
[2020-08-21 14:16:41,316 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (1/1) ...
[2020-08-21 14:16:41,316 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (1/1) ...
[2020-08-21 14:16:41,343 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (1/1) ...
[2020-08-21 14:16:41,381 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (1/1) ...
[2020-08-21 14:16:41,394 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (1/1) ...
[2020-08-21 14:16:41,409 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-21 14:16:41,410 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-21 14:16:41,410 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-21 14:16:41,410 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-21 14:16:41,411 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (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
[2020-08-21 14:16:41,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-21 14:16:41,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-21 14:16:41,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure error
[2020-08-21 14:16:41,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure master
[2020-08-21 14:16:41,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit1
[2020-08-21 14:16:41,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit2
[2020-08-21 14:16:41,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit3
[2020-08-21 14:16:41,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit4
[2020-08-21 14:16:41,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit5
[2020-08-21 14:16:41,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit6
[2020-08-21 14:16:41,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit7
[2020-08-21 14:16:41,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit8
[2020-08-21 14:16:41,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit9
[2020-08-21 14:16:41,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit10
[2020-08-21 14:16:41,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit11
[2020-08-21 14:16:41,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit12
[2020-08-21 14:16:41,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit13
[2020-08-21 14:16:41,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure transmit14
[2020-08-21 14:16:41,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_master_triggered
[2020-08-21 14:16:41,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered
[2020-08-21 14:16:41,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered
[2020-08-21 14:16:41,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered
[2020-08-21 14:16:41,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered
[2020-08-21 14:16:41,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered
[2020-08-21 14:16:41,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered
[2020-08-21 14:16:41,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered
[2020-08-21 14:16:41,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered
[2020-08-21 14:16:41,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered
[2020-08-21 14:16:41,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered
[2020-08-21 14:16:41,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered
[2020-08-21 14:16:41,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered
[2020-08-21 14:16:41,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered
[2020-08-21 14:16:41,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered
[2020-08-21 14:16:41,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure update_channels
[2020-08-21 14:16:41,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure init_threads
[2020-08-21 14:16:41,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure exists_runnable_thread
[2020-08-21 14:16:41,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure eval
[2020-08-21 14:16:41,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure fire_delta_events
[2020-08-21 14:16:41,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure reset_delta_events
[2020-08-21 14:16:41,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure activate_threads
[2020-08-21 14:16:41,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure immediate_notify
[2020-08-21 14:16:41,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure fire_time_events
[2020-08-21 14:16:41,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure reset_time_events
[2020-08-21 14:16:41,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure init_model
[2020-08-21 14:16:41,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure stop_simulation
[2020-08-21 14:16:41,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure start_simulation
[2020-08-21 14:16:41,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-21 14:16:41,499 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-21 14:16:41,499 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-21 14:16:41,499 INFO  L130     BoogieDeclarations]: Found specification of procedure error
[2020-08-21 14:16:41,499 INFO  L130     BoogieDeclarations]: Found specification of procedure is_master_triggered
[2020-08-21 14:16:41,499 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit1_triggered
[2020-08-21 14:16:41,499 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit2_triggered
[2020-08-21 14:16:41,500 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit3_triggered
[2020-08-21 14:16:41,500 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit4_triggered
[2020-08-21 14:16:41,500 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit5_triggered
[2020-08-21 14:16:41,501 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit6_triggered
[2020-08-21 14:16:41,501 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit7_triggered
[2020-08-21 14:16:41,501 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit8_triggered
[2020-08-21 14:16:41,502 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit9_triggered
[2020-08-21 14:16:41,502 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit10_triggered
[2020-08-21 14:16:41,502 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit11_triggered
[2020-08-21 14:16:41,502 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit12_triggered
[2020-08-21 14:16:41,503 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit13_triggered
[2020-08-21 14:16:41,503 INFO  L130     BoogieDeclarations]: Found specification of procedure is_transmit14_triggered
[2020-08-21 14:16:41,504 INFO  L130     BoogieDeclarations]: Found specification of procedure immediate_notify
[2020-08-21 14:16:41,504 INFO  L130     BoogieDeclarations]: Found specification of procedure master
[2020-08-21 14:16:41,504 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit1
[2020-08-21 14:16:41,504 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit2
[2020-08-21 14:16:41,504 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit3
[2020-08-21 14:16:41,504 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit4
[2020-08-21 14:16:41,505 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit5
[2020-08-21 14:16:41,506 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit6
[2020-08-21 14:16:41,506 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit7
[2020-08-21 14:16:41,506 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit8
[2020-08-21 14:16:41,507 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit9
[2020-08-21 14:16:41,507 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit10
[2020-08-21 14:16:41,508 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit11
[2020-08-21 14:16:41,508 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit12
[2020-08-21 14:16:41,508 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit13
[2020-08-21 14:16:41,509 INFO  L130     BoogieDeclarations]: Found specification of procedure transmit14
[2020-08-21 14:16:41,509 INFO  L130     BoogieDeclarations]: Found specification of procedure update_channels
[2020-08-21 14:16:41,509 INFO  L130     BoogieDeclarations]: Found specification of procedure init_threads
[2020-08-21 14:16:41,509 INFO  L130     BoogieDeclarations]: Found specification of procedure exists_runnable_thread
[2020-08-21 14:16:41,509 INFO  L130     BoogieDeclarations]: Found specification of procedure eval
[2020-08-21 14:16:41,509 INFO  L130     BoogieDeclarations]: Found specification of procedure fire_delta_events
[2020-08-21 14:16:41,509 INFO  L130     BoogieDeclarations]: Found specification of procedure reset_delta_events
[2020-08-21 14:16:41,511 INFO  L130     BoogieDeclarations]: Found specification of procedure activate_threads
[2020-08-21 14:16:41,511 INFO  L130     BoogieDeclarations]: Found specification of procedure fire_time_events
[2020-08-21 14:16:41,511 INFO  L130     BoogieDeclarations]: Found specification of procedure reset_time_events
[2020-08-21 14:16:41,511 INFO  L130     BoogieDeclarations]: Found specification of procedure init_model
[2020-08-21 14:16:41,511 INFO  L130     BoogieDeclarations]: Found specification of procedure stop_simulation
[2020-08-21 14:16:41,511 INFO  L130     BoogieDeclarations]: Found specification of procedure start_simulation
[2020-08-21 14:16:41,511 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-21 14:16:41,512 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-21 14:16:41,512 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-21 14:16:42,839 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-21 14:16:42,840 INFO  L295             CfgBuilder]: Removed 18 assume(true) statements.
[2020-08-21 14:16:42,848 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:16:42 BoogieIcfgContainer
[2020-08-21 14:16:42,848 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-21 14:16:42,850 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-21 14:16:42,850 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-21 14:16:42,853 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-21 14:16:42,853 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 02:16:40" (1/3) ...
[2020-08-21 14:16:42,854 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28eefd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:16:42, skipping insertion in model container
[2020-08-21 14:16:42,854 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:41" (2/3) ...
[2020-08-21 14:16:42,855 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28eefd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:16:42, skipping insertion in model container
[2020-08-21 14:16:42,855 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:16:42" (3/3) ...
[2020-08-21 14:16:42,857 INFO  L109   eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c
[2020-08-21 14:16:42,869 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-21 14:16:42,878 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-21 14:16:42,893 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-21 14:16:42,924 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-21 14:16:42,924 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-21 14:16:42,924 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-21 14:16:42,925 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-21 14:16:42,925 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-21 14:16:42,925 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-21 14:16:42,925 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-21 14:16:42,926 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-21 14:16:42,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 526 states.
[2020-08-21 14:16:42,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-08-21 14:16:42,975 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 14:16:42,976 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 14:16:42,977 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 14:16:42,984 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 14:16:42,985 INFO  L82        PathProgramCache]: Analyzing trace with hash -1383974208, now seen corresponding path program 1 times
[2020-08-21 14:16:42,994 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 14:16:42,995 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678954323]
[2020-08-21 14:16:42,995 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 14:16:43,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:43,935 WARN  L193               SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 223
[2020-08-21 14:16:43,943 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 14:16:43,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,049 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-21 14:16:44,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,070 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-21 14:16:44,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,132 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-08-21 14:16:44,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,263 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-08-21 14:16:44,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,285 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-08-21 14:16:44,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,370 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-21 14:16:44,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,374 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-08-21 14:16:44,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,376 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-08-21 14:16:44,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,379 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-08-21 14:16:44,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,382 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-08-21 14:16:44,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,385 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-08-21 14:16:44,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,418 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-08-21 14:16:44,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,422 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2020-08-21 14:16:44,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,425 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2020-08-21 14:16:44,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,428 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2020-08-21 14:16:44,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,431 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-08-21 14:16:44,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,434 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-08-21 14:16:44,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,437 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2020-08-21 14:16:44,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,440 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-08-21 14:16:44,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,443 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-21 14:16:44,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,462 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-08-21 14:16:44,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,475 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2020-08-21 14:16:44,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:44,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 14:16:44,599 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678954323]
[2020-08-21 14:16:44,601 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 14:16:44,602 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-08-21 14:16:44,602 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808765990]
[2020-08-21 14:16:44,608 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-08-21 14:16:44,609 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 14:16:44,622 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-08-21 14:16:44,623 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2020-08-21 14:16:44,626 INFO  L87              Difference]: Start difference. First operand 526 states. Second operand 12 states.
[2020-08-21 14:16:45,005 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 226
[2020-08-21 14:16:45,148 WARN  L193               SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 136
[2020-08-21 14:16:45,496 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 225
[2020-08-21 14:16:45,739 WARN  L193               SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-08-21 14:16:48,104 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 227
[2020-08-21 14:16:48,439 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 229
[2020-08-21 14:16:48,770 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 227
[2020-08-21 14:16:48,955 WARN  L193               SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 137
[2020-08-21 14:16:49,282 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 227
[2020-08-21 14:16:49,423 WARN  L193               SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 137
[2020-08-21 14:16:58,045 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 14:16:58,045 INFO  L93              Difference]: Finished difference Result 1409 states and 2346 transitions.
[2020-08-21 14:16:58,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-08-21 14:16:58,048 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 254
[2020-08-21 14:16:58,048 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 14:16:58,085 INFO  L225             Difference]: With dead ends: 1409
[2020-08-21 14:16:58,086 INFO  L226             Difference]: Without dead ends: 887
[2020-08-21 14:16:58,096 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600
[2020-08-21 14:16:58,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2020-08-21 14:16:58,316 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 522.
[2020-08-21 14:16:58,317 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 522 states.
[2020-08-21 14:16:58,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 765 transitions.
[2020-08-21 14:16:58,324 INFO  L78                 Accepts]: Start accepts. Automaton has 522 states and 765 transitions. Word has length 254
[2020-08-21 14:16:58,325 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 14:16:58,325 INFO  L479      AbstractCegarLoop]: Abstraction has 522 states and 765 transitions.
[2020-08-21 14:16:58,325 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-08-21 14:16:58,325 INFO  L276                IsEmpty]: Start isEmpty. Operand 522 states and 765 transitions.
[2020-08-21 14:16:58,330 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-08-21 14:16:58,331 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 14:16:58,331 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 14:16:58,332 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-21 14:16:58,332 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 14:16:58,332 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 14:16:58,333 INFO  L82        PathProgramCache]: Analyzing trace with hash -1062988672, now seen corresponding path program 1 times
[2020-08-21 14:16:58,333 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 14:16:58,333 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988325148]
[2020-08-21 14:16:58,334 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 14:16:58,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:58,721 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 223
[2020-08-21 14:16:58,722 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 14:16:58,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:58,772 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-21 14:16:58,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:58,780 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-21 14:16:58,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:58,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-08-21 14:16:58,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:58,914 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-08-21 14:16:58,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:58,929 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-08-21 14:16:58,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,008 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-21 14:16:59,009 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,010 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-08-21 14:16:59,011 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,012 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-08-21 14:16:59,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,014 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-08-21 14:16:59,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,016 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-08-21 14:16:59,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,018 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-08-21 14:16:59,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,021 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-08-21 14:16:59,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,023 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2020-08-21 14:16:59,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,066 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2020-08-21 14:16:59,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,069 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2020-08-21 14:16:59,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-08-21 14:16:59,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,079 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-08-21 14:16:59,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,082 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2020-08-21 14:16:59,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,085 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-08-21 14:16:59,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,092 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-21 14:16:59,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,141 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-08-21 14:16:59,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,163 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2020-08-21 14:16:59,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:16:59,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 14:16:59,260 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988325148]
[2020-08-21 14:16:59,261 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 14:16:59,261 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-08-21 14:16:59,262 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330604063]
[2020-08-21 14:16:59,273 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-08-21 14:16:59,282 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 14:16:59,282 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-08-21 14:16:59,283 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2020-08-21 14:16:59,283 INFO  L87              Difference]: Start difference. First operand 522 states and 765 transitions. Second operand 12 states.
[2020-08-21 14:16:59,642 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 226
[2020-08-21 14:16:59,779 WARN  L193               SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 136
[2020-08-21 14:17:00,104 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 225
[2020-08-21 14:17:00,297 WARN  L193               SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-08-21 14:17:02,789 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 227
[2020-08-21 14:17:03,128 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 229
[2020-08-21 14:17:03,303 WARN  L193               SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137
[2020-08-21 14:17:03,609 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 227
[2020-08-21 14:17:03,775 WARN  L193               SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 137
[2020-08-21 14:17:04,065 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 227
[2020-08-21 14:17:12,191 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 14:17:12,192 INFO  L93              Difference]: Finished difference Result 1386 states and 2171 transitions.
[2020-08-21 14:17:12,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2020-08-21 14:17:12,198 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 254
[2020-08-21 14:17:12,199 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 14:17:12,206 INFO  L225             Difference]: With dead ends: 1386
[2020-08-21 14:17:12,207 INFO  L226             Difference]: Without dead ends: 888
[2020-08-21 14:17:12,211 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552
[2020-08-21 14:17:12,212 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 888 states.
[2020-08-21 14:17:12,310 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 527.
[2020-08-21 14:17:12,311 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 527 states.
[2020-08-21 14:17:12,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions.
[2020-08-21 14:17:12,315 INFO  L78                 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 254
[2020-08-21 14:17:12,315 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 14:17:12,315 INFO  L479      AbstractCegarLoop]: Abstraction has 527 states and 769 transitions.
[2020-08-21 14:17:12,316 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-08-21 14:17:12,316 INFO  L276                IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions.
[2020-08-21 14:17:12,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-08-21 14:17:12,320 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 14:17:12,321 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 14:17:12,321 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-21 14:17:12,321 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 14:17:12,321 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 14:17:12,322 INFO  L82        PathProgramCache]: Analyzing trace with hash 458447040, now seen corresponding path program 1 times
[2020-08-21 14:17:12,322 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 14:17:12,322 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634514498]
[2020-08-21 14:17:12,323 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 14:17:12,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,685 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 223
[2020-08-21 14:17:12,687 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 14:17:12,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,742 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-21 14:17:12,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,748 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-21 14:17:12,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,782 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-08-21 14:17:12,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,899 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-08-21 14:17:12,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,933 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-08-21 14:17:12,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-21 14:17:12,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,971 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-08-21 14:17:12,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,973 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-08-21 14:17:12,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,975 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-08-21 14:17:12,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,977 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-08-21 14:17:12,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,979 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-08-21 14:17:12,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,981 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-08-21 14:17:12,982 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,984 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2020-08-21 14:17:12,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,986 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2020-08-21 14:17:12,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,988 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2020-08-21 14:17:12,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,990 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-08-21 14:17:12,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,992 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-08-21 14:17:12,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,995 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2020-08-21 14:17:12,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,997 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-08-21 14:17:12,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:12,999 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-21 14:17:13,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:13,021 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-08-21 14:17:13,026 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:13,032 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2020-08-21 14:17:13,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:13,179 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 14:17:13,180 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634514498]
[2020-08-21 14:17:13,180 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 14:17:13,180 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-08-21 14:17:13,181 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477029417]
[2020-08-21 14:17:13,181 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-08-21 14:17:13,182 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 14:17:13,182 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-08-21 14:17:13,182 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2020-08-21 14:17:13,182 INFO  L87              Difference]: Start difference. First operand 527 states and 769 transitions. Second operand 9 states.
[2020-08-21 14:17:13,486 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 225
[2020-08-21 14:17:13,631 WARN  L193               SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-08-21 14:17:13,847 WARN  L193               SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-08-21 14:17:21,626 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 226
[2020-08-21 14:17:21,832 WARN  L193               SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 136
[2020-08-21 14:17:27,497 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 14:17:27,497 INFO  L93              Difference]: Finished difference Result 2134 states and 3311 transitions.
[2020-08-21 14:17:27,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-08-21 14:17:27,498 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 254
[2020-08-21 14:17:27,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 14:17:27,511 INFO  L225             Difference]: With dead ends: 2134
[2020-08-21 14:17:27,512 INFO  L226             Difference]: Without dead ends: 1639
[2020-08-21 14:17:27,515 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306
[2020-08-21 14:17:27,518 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1639 states.
[2020-08-21 14:17:27,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1040.
[2020-08-21 14:17:27,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1040 states.
[2020-08-21 14:17:27,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1532 transitions.
[2020-08-21 14:17:27,723 INFO  L78                 Accepts]: Start accepts. Automaton has 1040 states and 1532 transitions. Word has length 254
[2020-08-21 14:17:27,724 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 14:17:27,724 INFO  L479      AbstractCegarLoop]: Abstraction has 1040 states and 1532 transitions.
[2020-08-21 14:17:27,724 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-08-21 14:17:27,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 1040 states and 1532 transitions.
[2020-08-21 14:17:27,728 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-08-21 14:17:27,728 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 14:17:27,728 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 14:17:27,729 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-21 14:17:27,729 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 14:17:27,729 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 14:17:27,729 INFO  L82        PathProgramCache]: Analyzing trace with hash 1062661057, now seen corresponding path program 1 times
[2020-08-21 14:17:27,729 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 14:17:27,730 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884082344]
[2020-08-21 14:17:27,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 14:17:27,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,112 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 223
[2020-08-21 14:17:28,114 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 14:17:28,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,179 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-21 14:17:28,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,189 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-21 14:17:28,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,225 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-08-21 14:17:28,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,299 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-08-21 14:17:28,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,342 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-08-21 14:17:28,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,384 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-21 14:17:28,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,387 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-08-21 14:17:28,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,389 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-08-21 14:17:28,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,392 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-08-21 14:17:28,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,394 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-08-21 14:17:28,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,396 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-08-21 14:17:28,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,398 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-08-21 14:17:28,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,402 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2020-08-21 14:17:28,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,405 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2020-08-21 14:17:28,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,406 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2020-08-21 14:17:28,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,408 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-08-21 14:17:28,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,411 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-08-21 14:17:28,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2020-08-21 14:17:28,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,416 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-08-21 14:17:28,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,419 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-21 14:17:28,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,432 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-08-21 14:17:28,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,441 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2020-08-21 14:17:28,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:28,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 14:17:28,573 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884082344]
[2020-08-21 14:17:28,573 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 14:17:28,573 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-08-21 14:17:28,574 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782146720]
[2020-08-21 14:17:28,574 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-08-21 14:17:28,575 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 14:17:28,575 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-08-21 14:17:28,575 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2020-08-21 14:17:28,576 INFO  L87              Difference]: Start difference. First operand 1040 states and 1532 transitions. Second operand 10 states.
[2020-08-21 14:17:28,995 WARN  L193               SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 225
[2020-08-21 14:17:29,240 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-08-21 14:17:29,530 WARN  L193               SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-08-21 14:17:29,859 WARN  L193               SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2020-08-21 14:17:37,460 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 14:17:37,461 INFO  L93              Difference]: Finished difference Result 2636 states and 4012 transitions.
[2020-08-21 14:17:37,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-08-21 14:17:37,465 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 254
[2020-08-21 14:17:37,465 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 14:17:37,475 INFO  L225             Difference]: With dead ends: 2636
[2020-08-21 14:17:37,475 INFO  L226             Difference]: Without dead ends: 1628
[2020-08-21 14:17:37,479 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210
[2020-08-21 14:17:37,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1628 states.
[2020-08-21 14:17:37,673 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1040.
[2020-08-21 14:17:37,673 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1040 states.
[2020-08-21 14:17:37,677 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1525 transitions.
[2020-08-21 14:17:37,678 INFO  L78                 Accepts]: Start accepts. Automaton has 1040 states and 1525 transitions. Word has length 254
[2020-08-21 14:17:37,678 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 14:17:37,679 INFO  L479      AbstractCegarLoop]: Abstraction has 1040 states and 1525 transitions.
[2020-08-21 14:17:37,679 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-08-21 14:17:37,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 1040 states and 1525 transitions.
[2020-08-21 14:17:37,682 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-08-21 14:17:37,682 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 14:17:37,682 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 14:17:37,683 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-21 14:17:37,683 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 14:17:37,683 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 14:17:37,683 INFO  L82        PathProgramCache]: Analyzing trace with hash 1143415041, now seen corresponding path program 1 times
[2020-08-21 14:17:37,684 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 14:17:37,684 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460739749]
[2020-08-21 14:17:37,684 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 14:17:37,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,013 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 223
[2020-08-21 14:17:38,014 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 14:17:38,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,078 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-21 14:17:38,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,083 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-21 14:17:38,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,119 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-08-21 14:17:38,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,198 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-08-21 14:17:38,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,253 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-08-21 14:17:38,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,291 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-21 14:17:38,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,292 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-08-21 14:17:38,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,294 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-08-21 14:17:38,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,296 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-08-21 14:17:38,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,297 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-08-21 14:17:38,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,299 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-08-21 14:17:38,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,301 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-08-21 14:17:38,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2020-08-21 14:17:38,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,309 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2020-08-21 14:17:38,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,311 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2020-08-21 14:17:38,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,313 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-08-21 14:17:38,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,315 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-08-21 14:17:38,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,317 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2020-08-21 14:17:38,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,319 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-08-21 14:17:38,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,321 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-21 14:17:38,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,333 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-08-21 14:17:38,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,342 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2020-08-21 14:17:38,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 14:17:38,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 14:17:38,471 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460739749]
[2020-08-21 14:17:38,472 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 14:17:38,472 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-08-21 14:17:38,473 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459809216]
[2020-08-21 14:17:38,474 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-08-21 14:17:38,474 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 14:17:38,474 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-08-21 14:17:38,475 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2020-08-21 14:17:38,475 INFO  L87              Difference]: Start difference. First operand 1040 states and 1525 transitions. Second operand 10 states.
[2020-08-21 14:17:38,779 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 225
[2020-08-21 14:17:38,915 WARN  L193               SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 135
[2020-08-21 14:17:39,172 WARN  L193               SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 135