/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --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.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 21:31:38,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 21:31:38,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 21:31:38,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 21:31:38,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 21:31:38,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 21:31:38,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 21:31:38,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 21:31:38,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 21:31:38,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 21:31:38,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 21:31:38,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 21:31:38,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 21:31:38,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 21:31:38,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 21:31:38,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 21:31:38,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 21:31:38,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 21:31:38,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 21:31:38,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 21:31:38,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 21:31:38,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 21:31:38,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 21:31:38,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 21:31:38,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 21:31:38,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 21:31:38,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 21:31:38,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 21:31:38,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 21:31:38,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 21:31:38,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 21:31:38,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 21:31:38,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 21:31:38,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 21:31:38,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 21:31:38,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 21:31:38,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 21:31:38,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 21:31:38,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 21:31:38,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 21:31:38,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 21:31:38,340 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 21:31:38,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 21:31:38,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 21:31:38,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 21:31:38,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 21:31:38,382 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 21:31:38,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 21:31:38,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 21:31:38,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 21:31:38,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 21:31:38,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 21:31:38,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 21:31:38,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 21:31:38,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 21:31:38,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 21:31:38,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 21:31:38,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 21:31:38,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 21:31:38,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 21:31:38,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 21:31:38,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 21:31:38,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 21:31:38,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 21:31:38,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 21:31:38,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 21:31:38,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 21:31:38,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 21:31:38,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 21:31:38,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 21:31:38,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 21:31:38,388 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 -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-08-21 21:31:38,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 21:31:38,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 21:31:38,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 21:31:38,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 21:31:38,747 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 21:31:38,747 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-21 21:31:38,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e14ca5a0b/b74372b45d3948119474b45009210f44/FLAGd39bbe8cd [2020-08-21 21:31:39,409 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 21:31:39,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-21 21:31:39,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e14ca5a0b/b74372b45d3948119474b45009210f44/FLAGd39bbe8cd [2020-08-21 21:31:39,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e14ca5a0b/b74372b45d3948119474b45009210f44 [2020-08-21 21:31:39,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 21:31:39,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 21:31:39,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 21:31:39,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 21:31:39,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 21:31:39,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:31:39" (1/1) ... [2020-08-21 21:31:39,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457b3941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:39, skipping insertion in model container [2020-08-21 21:31:39,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:31:39" (1/1) ... [2020-08-21 21:31:39,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 21:31:39,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 21:31:40,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:31:40,307 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 21:31:40,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:31:40,468 INFO L208 MainTranslator]: Completed translation [2020-08-21 21:31:40,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40 WrapperNode [2020-08-21 21:31:40,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 21:31:40,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 21:31:40,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 21:31:40,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 21:31:40,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (1/1) ... [2020-08-21 21:31:40,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (1/1) ... [2020-08-21 21:31:40,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (1/1) ... [2020-08-21 21:31:40,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (1/1) ... [2020-08-21 21:31:40,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (1/1) ... [2020-08-21 21:31:40,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (1/1) ... [2020-08-21 21:31:40,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (1/1) ... [2020-08-21 21:31:40,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 21:31:40,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 21:31:40,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 21:31:40,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 21:31:40,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (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 21:31:40,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 21:31:40,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 21:31:40,662 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-21 21:31:40,662 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-21 21:31:40,663 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-21 21:31:40,663 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-21 21:31:40,663 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-21 21:31:40,663 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-21 21:31:40,663 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-21 21:31:40,664 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-21 21:31:40,664 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-21 21:31:40,664 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-21 21:31:40,664 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-21 21:31:40,666 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-21 21:31:40,666 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-21 21:31:40,667 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-21 21:31:40,667 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-21 21:31:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-21 21:31:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-21 21:31:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-21 21:31:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-21 21:31:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-21 21:31:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-21 21:31:40,669 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-21 21:31:40,669 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-21 21:31:40,670 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-21 21:31:40,670 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-21 21:31:40,670 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-21 21:31:40,670 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-21 21:31:40,671 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-21 21:31:40,671 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-21 21:31:40,671 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-21 21:31:40,671 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-21 21:31:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-21 21:31:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-21 21:31:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-21 21:31:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-21 21:31:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-21 21:31:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-21 21:31:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-21 21:31:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-21 21:31:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-21 21:31:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-21 21:31:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-21 21:31:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 21:31:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 21:31:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 21:31:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-21 21:31:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-21 21:31:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-21 21:31:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-21 21:31:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-21 21:31:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-21 21:31:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-21 21:31:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-21 21:31:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-21 21:31:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-21 21:31:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-21 21:31:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-21 21:31:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-21 21:31:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-21 21:31:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-21 21:31:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-21 21:31:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-21 21:31:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-21 21:31:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-21 21:31:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-21 21:31:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-21 21:31:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-21 21:31:40,678 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-21 21:31:40,678 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-21 21:31:40,679 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-21 21:31:40,679 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-21 21:31:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-21 21:31:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-21 21:31:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-21 21:31:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-21 21:31:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-21 21:31:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-21 21:31:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-21 21:31:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-21 21:31:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-21 21:31:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-21 21:31:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-21 21:31:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-21 21:31:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-21 21:31:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-21 21:31:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-21 21:31:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-21 21:31:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 21:31:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 21:31:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 21:31:41,924 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 21:31:41,924 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-21 21:31:41,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:31:41 BoogieIcfgContainer [2020-08-21 21:31:41,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 21:31:41,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 21:31:41,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 21:31:41,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 21:31:41,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 09:31:39" (1/3) ... [2020-08-21 21:31:41,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f61d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:31:41, skipping insertion in model container [2020-08-21 21:31:41,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:31:40" (2/3) ... [2020-08-21 21:31:41,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f61d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:31:41, skipping insertion in model container [2020-08-21 21:31:41,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:31:41" (3/3) ... [2020-08-21 21:31:41,940 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-21 21:31:41,951 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 21:31:41,959 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 21:31:41,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 21:31:42,000 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 21:31:42,000 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 21:31:42,000 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 21:31:42,000 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 21:31:42,001 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 21:31:42,001 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 21:31:42,001 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 21:31:42,001 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 21:31:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-21 21:31:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 21:31:42,048 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:31:42,050 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] [2020-08-21 21:31:42,050 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:31:42,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:31:42,057 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-21 21:31:42,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:31:42,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146039946] [2020-08-21 21:31:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:31:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:42,902 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 21:31:42,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:31:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:42,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:31:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:31:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:31:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:31:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 21:31:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:31:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:31:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 21:31:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 21:31:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:31:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 21:31:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:31:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 21:31:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 21:31:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 21:31:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 21:31:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 21:31:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 21:31:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 21:31:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 21:31:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 21:31:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:43,670 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 21:31:43,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146039946] [2020-08-21 21:31:43,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:31:43,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 21:31:43,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236443702] [2020-08-21 21:31:43,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 21:31:43,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:31:43,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 21:31:43,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 21:31:43,699 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-21 21:31:44,045 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 21:31:44,182 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 21:31:44,452 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 21:31:44,642 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 21:31:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:31:52,591 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-21 21:31:52,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 21:31:52,593 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-21 21:31:52,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:31:52,627 INFO L225 Difference]: With dead ends: 1306 [2020-08-21 21:31:52,627 INFO L226 Difference]: Without dead ends: 810 [2020-08-21 21:31:52,639 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 [2020-08-21 21:31:52,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-21 21:31:52,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-21 21:31:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-21 21:31:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-21 21:31:52,848 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-21 21:31:52,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:31:52,849 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-21 21:31:52,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 21:31:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-21 21:31:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 21:31:52,854 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:31:52,855 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] [2020-08-21 21:31:52,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 21:31:52,856 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:31:52,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:31:52,856 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-21 21:31:52,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:31:52,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79732788] [2020-08-21 21:31:52,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:31:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,298 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 21:31:53,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:31:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:31:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:31:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:31:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:31:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 21:31:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:31:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:31:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 21:31:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 21:31:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:31:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 21:31:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:31:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 21:31:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 21:31:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 21:31:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 21:31:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 21:31:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 21:31:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 21:31:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 21:31:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 21:31:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:31:53,677 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 21:31:53,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79732788] [2020-08-21 21:31:53,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:31:53,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 21:31:53,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16516953] [2020-08-21 21:31:53,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 21:31:53,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:31:53,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 21:31:53,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 21:31:53,681 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-21 21:31:53,956 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 21:31:54,124 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 21:31:54,394 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 21:31:54,559 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 21:32:00,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:32:00,830 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-21 21:32:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 21:32:00,835 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-21 21:32:00,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:32:00,845 INFO L225 Difference]: With dead ends: 1277 [2020-08-21 21:32:00,846 INFO L226 Difference]: Without dead ends: 810 [2020-08-21 21:32:00,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-08-21 21:32:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-21 21:32:00,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-21 21:32:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-21 21:32:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-21 21:32:00,959 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-21 21:32:00,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:32:00,960 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-21 21:32:00,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 21:32:00,960 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-21 21:32:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 21:32:00,967 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:32:00,967 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] [2020-08-21 21:32:00,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 21:32:00,968 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:32:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:32:00,968 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-21 21:32:00,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:32:00,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417675932] [2020-08-21 21:32:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:32:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,324 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 21:32:01,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:32:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:32:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:32:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:32:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:32:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 21:32:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:32:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:32:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 21:32:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 21:32:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:32:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 21:32:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:32:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 21:32:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 21:32:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 21:32:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 21:32:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 21:32:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 21:32:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 21:32:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 21:32:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 21:32:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:01,696 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 21:32:01,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417675932] [2020-08-21 21:32:01,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:32:01,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 21:32:01,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422455115] [2020-08-21 21:32:01,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 21:32:01,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:32:01,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 21:32:01,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 21:32:01,700 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-21 21:32:01,990 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 21:32:02,113 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 21:32:09,120 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 21:32:09,330 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 21:32:14,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:32:14,457 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-21 21:32:14,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 21:32:14,458 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-21 21:32:14,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:32:14,470 INFO L225 Difference]: With dead ends: 1991 [2020-08-21 21:32:14,470 INFO L226 Difference]: Without dead ends: 1532 [2020-08-21 21:32:14,474 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 [2020-08-21 21:32:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-21 21:32:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-21 21:32:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 21:32:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-21 21:32:14,690 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-21 21:32:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:32:14,690 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-21 21:32:14,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 21:32:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-21 21:32:14,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 21:32:14,694 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:32:14,694 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] [2020-08-21 21:32:14,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 21:32:14,695 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:32:14,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:32:14,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-21 21:32:14,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:32:14,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539983157] [2020-08-21 21:32:14,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:32:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:14,984 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 21:32:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:32:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:32:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:32:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:32:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:32:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 21:32:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:32:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:32:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 21:32:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 21:32:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:32:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 21:32:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:32:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 21:32:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 21:32:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 21:32:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 21:32:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 21:32:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 21:32:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 21:32:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 21:32:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 21:32:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:15,565 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 21:32:15,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539983157] [2020-08-21 21:32:15,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:32:15,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 21:32:15,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259220113] [2020-08-21 21:32:15,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 21:32:15,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:32:15,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 21:32:15,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 21:32:15,569 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-21 21:32:15,917 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 21:32:16,040 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 21:32:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:32:24,158 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-21 21:32:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 21:32:24,159 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-21 21:32:24,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:32:24,172 INFO L225 Difference]: With dead ends: 2455 [2020-08-21 21:32:24,172 INFO L226 Difference]: Without dead ends: 1521 [2020-08-21 21:32:24,176 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 [2020-08-21 21:32:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-21 21:32:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-21 21:32:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 21:32:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-21 21:32:24,322 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-21 21:32:24,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:32:24,322 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-21 21:32:24,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 21:32:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-21 21:32:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 21:32:24,326 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:32:24,326 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] [2020-08-21 21:32:24,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 21:32:24,327 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:32:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:32:24,327 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-21 21:32:24,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:32:24,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874720666] [2020-08-21 21:32:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:32:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,639 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 21:32:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:32:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:32:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:32:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:32:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:32:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 21:32:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:32:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:32:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 21:32:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 21:32:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:32:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 21:32:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:32:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 21:32:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 21:32:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 21:32:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 21:32:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 21:32:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 21:32:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 21:32:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 21:32:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 21:32:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:25,033 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 21:32:25,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874720666] [2020-08-21 21:32:25,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:32:25,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 21:32:25,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650709257] [2020-08-21 21:32:25,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 21:32:25,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:32:25,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 21:32:25,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 21:32:25,037 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-21 21:32:25,314 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 21:32:25,444 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 21:32:25,694 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 21:32:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:32:31,520 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-21 21:32:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 21:32:31,521 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-21 21:32:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:32:31,530 INFO L225 Difference]: With dead ends: 2451 [2020-08-21 21:32:31,530 INFO L226 Difference]: Without dead ends: 1517 [2020-08-21 21:32:31,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-21 21:32:31,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-21 21:32:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-21 21:32:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 21:32:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-21 21:32:31,780 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-21 21:32:31,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:32:31,780 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-21 21:32:31,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 21:32:31,781 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-21 21:32:31,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 21:32:31,784 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:32:31,785 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] [2020-08-21 21:32:31,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 21:32:31,785 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:32:31,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:32:31,785 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-21 21:32:31,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:32:31,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845592654] [2020-08-21 21:32:31,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:32:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,110 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 21:32:32,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:32:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:32:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:32:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:32:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:32:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 21:32:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:32:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:32:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 21:32:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 21:32:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:32:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 21:32:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:32:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 21:32:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 21:32:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 21:32:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 21:32:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 21:32:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 21:32:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 21:32:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 21:32:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 21:32:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:32:32,489 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 21:32:32,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845592654] [2020-08-21 21:32:32,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:32:32,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 21:32:32,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862823682] [2020-08-21 21:32:32,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 21:32:32,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:32:32,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 21:32:32,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 21:32:32,492 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-21 21:32:32,755 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 21:32:32,888 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 21:32:33,081 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 126