/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 11:29:34,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 11:29:34,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 11:29:34,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 11:29:34,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 11:29:34,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 11:29:34,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 11:29:34,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 11:29:34,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 11:29:34,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 11:29:34,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 11:29:34,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 11:29:34,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 11:29:34,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 11:29:34,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 11:29:34,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 11:29:34,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 11:29:34,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 11:29:34,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 11:29:34,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 11:29:34,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 11:29:34,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 11:29:34,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 11:29:34,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 11:29:34,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 11:29:34,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 11:29:34,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 11:29:34,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 11:29:34,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 11:29:34,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 11:29:34,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 11:29:34,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 11:29:34,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 11:29:34,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 11:29:34,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 11:29:34,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 11:29:34,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 11:29:34,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 11:29:34,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 11:29:34,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 11:29:34,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 11:29:34,272 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 [2020-08-18 11:29:34,309 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 11:29:34,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 11:29:34,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 11:29:34,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 11:29:34,311 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 11:29:34,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 11:29:34,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 11:29:34,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 11:29:34,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 11:29:34,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 11:29:34,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 11:29:34,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 11:29:34,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 11:29:34,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 11:29:34,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 11:29:34,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 11:29:34,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 11:29:34,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 11:29:34,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 11:29:34,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 11:29:34,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 11:29:34,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 11:29:34,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 11:29:34,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 11:29:34,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 11:29:34,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 11:29:34,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 11:29:34,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 11:29:34,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 11:29:34,317 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 [2020-08-18 11:29:34,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 11:29:34,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 11:29:34,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 11:29:34,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 11:29:34,655 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 11:29:34,656 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-18 11:29:34,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a927970b0/82fcbea040574d70be9b9d480b18541b/FLAG5345ee610 [2020-08-18 11:29:35,272 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 11:29:35,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-18 11:29:35,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a927970b0/82fcbea040574d70be9b9d480b18541b/FLAG5345ee610 [2020-08-18 11:29:35,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a927970b0/82fcbea040574d70be9b9d480b18541b [2020-08-18 11:29:35,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 11:29:35,562 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 11:29:35,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 11:29:35,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 11:29:35,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 11:29:35,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:29:35" (1/1) ... [2020-08-18 11:29:35,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7302eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:35, skipping insertion in model container [2020-08-18 11:29:35,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:29:35" (1/1) ... [2020-08-18 11:29:35,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 11:29:35,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 11:29:35,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 11:29:35,997 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 11:29:36,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 11:29:36,252 INFO L208 MainTranslator]: Completed translation [2020-08-18 11:29:36,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36 WrapperNode [2020-08-18 11:29:36,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 11:29:36,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 11:29:36,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 11:29:36,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 11:29:36,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (1/1) ... [2020-08-18 11:29:36,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (1/1) ... [2020-08-18 11:29:36,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (1/1) ... [2020-08-18 11:29:36,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (1/1) ... [2020-08-18 11:29:36,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (1/1) ... [2020-08-18 11:29:36,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (1/1) ... [2020-08-18 11:29:36,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (1/1) ... [2020-08-18 11:29:36,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 11:29:36,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 11:29:36,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 11:29:36,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 11:29:36,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (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 [2020-08-18 11:29:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 11:29:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 11:29:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-18 11:29:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-18 11:29:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-18 11:29:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-18 11:29:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-18 11:29:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-18 11:29:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-18 11:29:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-18 11:29:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-18 11:29:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-18 11:29:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-18 11:29:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-18 11:29:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-18 11:29:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-18 11:29:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-18 11:29:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-18 11:29:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-18 11:29:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-18 11:29:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-18 11:29:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-18 11:29:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-18 11:29:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-18 11:29:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-18 11:29:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-18 11:29:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-18 11:29:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-18 11:29:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-18 11:29:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-18 11:29:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-18 11:29:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-18 11:29:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-18 11:29:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-18 11:29:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-18 11:29:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-18 11:29:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-18 11:29:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-18 11:29:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-18 11:29:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-18 11:29:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-18 11:29:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-18 11:29:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-18 11:29:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-18 11:29:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 11:29:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 11:29:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 11:29:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-18 11:29:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-18 11:29:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-18 11:29:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-18 11:29:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-18 11:29:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-18 11:29:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-18 11:29:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-18 11:29:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-18 11:29:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-18 11:29:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-18 11:29:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-18 11:29:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-18 11:29:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-18 11:29:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-18 11:29:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-18 11:29:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-18 11:29:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-18 11:29:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-18 11:29:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-18 11:29:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-18 11:29:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-18 11:29:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-18 11:29:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-18 11:29:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-18 11:29:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-18 11:29:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-18 11:29:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-18 11:29:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-18 11:29:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-18 11:29:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-18 11:29:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-18 11:29:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-18 11:29:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-18 11:29:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-18 11:29:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-18 11:29:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-18 11:29:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-18 11:29:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-18 11:29:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-18 11:29:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-18 11:29:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-18 11:29:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 11:29:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 11:29:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 11:29:37,568 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 11:29:37,569 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-18 11:29:37,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:29:37 BoogieIcfgContainer [2020-08-18 11:29:37,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 11:29:37,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 11:29:37,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 11:29:37,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 11:29:37,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:29:35" (1/3) ... [2020-08-18 11:29:37,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a92dd68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:29:37, skipping insertion in model container [2020-08-18 11:29:37,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:29:36" (2/3) ... [2020-08-18 11:29:37,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a92dd68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:29:37, skipping insertion in model container [2020-08-18 11:29:37,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:29:37" (3/3) ... [2020-08-18 11:29:37,585 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-18 11:29:37,596 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 11:29:37,604 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 11:29:37,618 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 11:29:37,646 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 11:29:37,646 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 11:29:37,646 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 11:29:37,646 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 11:29:37,647 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 11:29:37,647 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 11:29:37,647 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 11:29:37,647 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 11:29:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-18 11:29:37,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 11:29:37,695 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:29:37,697 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] [2020-08-18 11:29:37,698 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:29:37,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:29:37,706 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-18 11:29:37,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:29:37,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411842548] [2020-08-18 11:29:37,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:29:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,496 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 11:29:38,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:29:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:29:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:29:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 11:29:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 11:29:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 11:29:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:29:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 11:29:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 11:29:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 11:29:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 11:29:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 11:29:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 11:29:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 11:29:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 11:29:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 11:29:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 11:29:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 11:29:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 11:29:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 11:29:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 11:29:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:38,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 11:29:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 11:29:39,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411842548] [2020-08-18 11:29:39,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:29:39,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 11:29:39,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899492807] [2020-08-18 11:29:39,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 11:29:39,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:29:39,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 11:29:39,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 11:29:39,140 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-18 11:29:39,524 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 11:29:39,672 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 11:29:39,955 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 11:29:40,146 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:29:47,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:29:47,575 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-18 11:29:47,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 11:29:47,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-18 11:29:47,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:29:47,636 INFO L225 Difference]: With dead ends: 1306 [2020-08-18 11:29:47,636 INFO L226 Difference]: Without dead ends: 810 [2020-08-18 11:29:47,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-18 11:29:47,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-18 11:29:47,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-18 11:29:47,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-18 11:29:47,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-18 11:29:47,842 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-18 11:29:47,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:29:47,842 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-18 11:29:47,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 11:29:47,843 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-18 11:29:47,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 11:29:47,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:29:47,849 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] [2020-08-18 11:29:47,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 11:29:47,850 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:29:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:29:47,851 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-18 11:29:47,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:29:47,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973073317] [2020-08-18 11:29:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:29:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,198 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 11:29:48,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:29:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:29:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:29:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 11:29:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 11:29:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 11:29:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:29:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 11:29:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 11:29:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 11:29:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 11:29:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 11:29:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 11:29:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 11:29:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 11:29:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 11:29:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 11:29:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 11:29:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 11:29:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 11:29:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 11:29:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 11:29:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 11:29:48,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973073317] [2020-08-18 11:29:48,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:29:48,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 11:29:48,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292632987] [2020-08-18 11:29:48,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 11:29:48,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:29:48,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 11:29:48,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 11:29:48,631 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-18 11:29:48,915 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 11:29:49,054 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 11:29:49,347 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 11:29:55,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:29:55,709 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-18 11:29:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 11:29:55,717 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-18 11:29:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:29:55,726 INFO L225 Difference]: With dead ends: 1277 [2020-08-18 11:29:55,726 INFO L226 Difference]: Without dead ends: 810 [2020-08-18 11:29:55,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-08-18 11:29:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-18 11:29:55,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-18 11:29:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-18 11:29:55,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-18 11:29:55,843 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-18 11:29:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:29:55,844 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-18 11:29:55,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 11:29:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-18 11:29:55,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 11:29:55,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:29:55,849 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] [2020-08-18 11:29:55,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 11:29:55,850 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:29:55,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:29:55,850 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-18 11:29:55,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:29:55,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849811858] [2020-08-18 11:29:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:29:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,178 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 11:29:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:29:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:29:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:29:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 11:29:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 11:29:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 11:29:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:29:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 11:29:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 11:29:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 11:29:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 11:29:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 11:29:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 11:29:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 11:29:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 11:29:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 11:29:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 11:29:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 11:29:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 11:29:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 11:29:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 11:29:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 11:29:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:29:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 11:29:56,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849811858] [2020-08-18 11:29:56,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:29:56,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 11:29:56,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633975308] [2020-08-18 11:29:56,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 11:29:56,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:29:56,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 11:29:56,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 11:29:56,583 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-18 11:29:56,879 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 11:29:57,017 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:29:57,212 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:30:04,365 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 11:30:04,548 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 11:30:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:30:09,799 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-18 11:30:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 11:30:09,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-18 11:30:09,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:30:09,811 INFO L225 Difference]: With dead ends: 1991 [2020-08-18 11:30:09,811 INFO L226 Difference]: Without dead ends: 1532 [2020-08-18 11:30:09,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-18 11:30:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-18 11:30:09,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-18 11:30:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 11:30:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-18 11:30:09,986 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-18 11:30:09,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:30:09,987 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-18 11:30:09,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 11:30:09,987 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-18 11:30:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 11:30:09,991 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:30:09,992 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] [2020-08-18 11:30:09,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 11:30:09,992 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:30:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:30:09,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-18 11:30:09,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:30:09,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463515594] [2020-08-18 11:30:09,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:30:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,310 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 11:30:10,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:30:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:30:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:30:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 11:30:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 11:30:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 11:30:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:30:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 11:30:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 11:30:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 11:30:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 11:30:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 11:30:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 11:30:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 11:30:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 11:30:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 11:30:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 11:30:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 11:30:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 11:30:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 11:30:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 11:30:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 11:30:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 11:30:10,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463515594] [2020-08-18 11:30:10,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:30:10,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 11:30:10,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057389952] [2020-08-18 11:30:10,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 11:30:10,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:30:10,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 11:30:10,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 11:30:10,756 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-18 11:30:11,148 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 11:30:11,331 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:30:11,642 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:30:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:30:19,912 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-18 11:30:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 11:30:19,913 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-18 11:30:19,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:30:19,933 INFO L225 Difference]: With dead ends: 2455 [2020-08-18 11:30:19,933 INFO L226 Difference]: Without dead ends: 1521 [2020-08-18 11:30:19,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-18 11:30:19,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-18 11:30:20,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-18 11:30:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 11:30:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-18 11:30:20,150 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-18 11:30:20,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:30:20,151 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-18 11:30:20,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 11:30:20,151 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-18 11:30:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 11:30:20,156 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:30:20,156 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] [2020-08-18 11:30:20,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 11:30:20,157 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:30:20,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:30:20,157 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-18 11:30:20,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:30:20,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011526623] [2020-08-18 11:30:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:30:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,531 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 11:30:20,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:30:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:30:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:30:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 11:30:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 11:30:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 11:30:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:30:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 11:30:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 11:30:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 11:30:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 11:30:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 11:30:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 11:30:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 11:30:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 11:30:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 11:30:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 11:30:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 11:30:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 11:30:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 11:30:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 11:30:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 11:30:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:20,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 11:30:20,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011526623] [2020-08-18 11:30:20,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:30:20,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 11:30:20,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188840930] [2020-08-18 11:30:20,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 11:30:20,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:30:20,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 11:30:20,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 11:30:20,960 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-18 11:30:21,279 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 11:30:21,410 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:30:21,609 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:30:27,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:30:27,753 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-18 11:30:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 11:30:27,753 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-18 11:30:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:30:27,764 INFO L225 Difference]: With dead ends: 2451 [2020-08-18 11:30:27,764 INFO L226 Difference]: Without dead ends: 1517 [2020-08-18 11:30:27,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-18 11:30:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-18 11:30:27,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-18 11:30:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 11:30:27,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-18 11:30:27,958 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-18 11:30:27,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:30:27,958 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-18 11:30:27,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 11:30:27,959 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-18 11:30:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 11:30:27,962 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:30:27,963 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] [2020-08-18 11:30:27,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 11:30:27,963 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:30:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:30:27,964 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-18 11:30:27,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:30:27,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142649004] [2020-08-18 11:30:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:30:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,264 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 11:30:28,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:30:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:30:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:30:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 11:30:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 11:30:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 11:30:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:30:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 11:30:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 11:30:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 11:30:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 11:30:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 11:30:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 11:30:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 11:30:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 11:30:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 11:30:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 11:30:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 11:30:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 11:30:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 11:30:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 11:30:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 11:30:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:30:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 11:30:28,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142649004] [2020-08-18 11:30:28,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:30:28,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 11:30:28,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554592625] [2020-08-18 11:30:28,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 11:30:28,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:30:28,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 11:30:28,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 11:30:28,630 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-18 11:30:28,896 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 11:30:29,029 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 11:30:29,204 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 126