/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:06:17,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:06:17,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:06:17,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 19:06:17,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 19:06:17,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 19:06:17,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 19:06:17,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 19:06:17,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 19:06:17,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 19:06:17,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 19:06:17,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 19:06:17,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:06:17,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:06:17,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:06:17,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:06:17,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:06:17,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:06:17,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:06:17,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:06:17,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:06:17,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:06:17,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:06:17,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:06:17,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 19:06:17,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 19:06:17,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 19:06:17,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 19:06:17,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 19:06:17,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 19:06:17,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 19:06:17,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 19:06:17,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 19:06:17,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 19:06:17,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 19:06:17,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 19:06:17,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 19:06:17,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 19:06:17,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:06:17,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:06:17,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:06:17,341 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 19:06:17,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:06:17,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:06:17,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:06:17,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:06:17,381 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:06:17,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:06:17,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:06:17,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:06:17,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:06:17,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:06:17,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:06:17,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:06:17,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:06:17,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:06:17,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:06:17,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:06:17,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:06:17,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:06:17,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:06:17,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:06:17,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:06:17,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:06:17,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:06:17,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:06:17,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:06:17,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:06:17,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:06:17,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:06:17,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:06:17,387 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=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 19:06:17,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:06:17,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:06:17,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:06:17,705 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:06:17,705 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:06:17,706 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-21 19:06:17,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5acc7cd73/844d0ca917c042ad915410a4ff32d6a5/FLAG6320b4d2e [2020-08-21 19:06:18,312 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:06:18,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-21 19:06:18,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5acc7cd73/844d0ca917c042ad915410a4ff32d6a5/FLAG6320b4d2e [2020-08-21 19:06:18,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5acc7cd73/844d0ca917c042ad915410a4ff32d6a5 [2020-08-21 19:06:18,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:06:18,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:06:18,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:06:18,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:06:18,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:06:18,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:06:18" (1/1) ... [2020-08-21 19:06:18,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511a8c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:18, skipping insertion in model container [2020-08-21 19:06:18,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:06:18" (1/1) ... [2020-08-21 19:06:18,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:06:18,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:06:19,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:06:19,020 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:06:19,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:06:19,282 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:06:19,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19 WrapperNode [2020-08-21 19:06:19,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:06:19,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:06:19,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:06:19,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:06:19,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (1/1) ... [2020-08-21 19:06:19,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (1/1) ... [2020-08-21 19:06:19,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (1/1) ... [2020-08-21 19:06:19,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (1/1) ... [2020-08-21 19:06:19,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (1/1) ... [2020-08-21 19:06:19,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (1/1) ... [2020-08-21 19:06:19,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (1/1) ... [2020-08-21 19:06:19,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:06:19,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:06:19,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:06:19,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:06:19,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (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 19:06:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:06:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:06:19,459 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-21 19:06:19,459 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-21 19:06:19,459 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-21 19:06:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-21 19:06:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-21 19:06:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-21 19:06:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-21 19:06:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-21 19:06:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-21 19:06:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-21 19:06:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-21 19:06:19,463 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-21 19:06:19,463 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-21 19:06:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-21 19:06:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-21 19:06:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-21 19:06:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-21 19:06:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-21 19:06:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-21 19:06:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-21 19:06:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-21 19:06:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-21 19:06:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-21 19:06:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-21 19:06:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-21 19:06:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-21 19:06:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-21 19:06:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-21 19:06:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-21 19:06:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-21 19:06:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-21 19:06:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-21 19:06:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-21 19:06:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-21 19:06:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-21 19:06:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-21 19:06:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-21 19:06:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-21 19:06:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-21 19:06:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-21 19:06:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-21 19:06:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-21 19:06:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:06:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:06:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:06:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-21 19:06:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-21 19:06:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-21 19:06:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-21 19:06:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-21 19:06:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-21 19:06:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-21 19:06:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-21 19:06:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-21 19:06:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-21 19:06:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-21 19:06:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-21 19:06:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-21 19:06:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-21 19:06:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-21 19:06:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-21 19:06:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-21 19:06:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-21 19:06:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-21 19:06:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-21 19:06:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-21 19:06:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-21 19:06:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-21 19:06:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-21 19:06:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-21 19:06:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-21 19:06:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-21 19:06:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-21 19:06:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-21 19:06:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-21 19:06:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-21 19:06:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-21 19:06:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-21 19:06:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-21 19:06:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-21 19:06:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-21 19:06:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-21 19:06:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-21 19:06:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-21 19:06:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-21 19:06:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-21 19:06:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-21 19:06:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:06:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:06:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:06:20,810 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:06:20,811 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-21 19:06:20,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:06:20 BoogieIcfgContainer [2020-08-21 19:06:20,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:06:20,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:06:20,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:06:20,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:06:20,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:06:18" (1/3) ... [2020-08-21 19:06:20,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476ac4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:06:20, skipping insertion in model container [2020-08-21 19:06:20,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:06:19" (2/3) ... [2020-08-21 19:06:20,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476ac4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:06:20, skipping insertion in model container [2020-08-21 19:06:20,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:06:20" (3/3) ... [2020-08-21 19:06:20,834 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-21 19:06:20,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:06:20,869 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 19:06:20,885 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 19:06:20,924 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:06:20,924 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:06:20,924 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:06:20,924 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:06:20,925 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:06:20,925 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:06:20,925 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:06:20,925 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:06:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-21 19:06:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 19:06:21,009 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:06:21,011 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 19:06:21,011 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:06:21,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:06:21,018 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-21 19:06:21,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:06:21,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074617965] [2020-08-21 19:06:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:06:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:21,847 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 19:06:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:06:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:21,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:06:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:21,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 19:06:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:21,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 19:06:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 19:06:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 19:06:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:06:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 19:06:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:06:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 19:06:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 19:06:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 19:06:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 19:06:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 19:06:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 19:06:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 19:06:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 19:06:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 19:06:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 19:06:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 19:06:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 19:06:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 19:06:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:22,432 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 19:06:22,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074617965] [2020-08-21 19:06:22,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:06:22,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 19:06:22,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693681396] [2020-08-21 19:06:22,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 19:06:22,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:06:22,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 19:06:22,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:06:22,458 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-21 19:06:22,870 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 19:06:23,020 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 19:06:23,293 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 19:06:23,464 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:06:31,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:06:31,051 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-21 19:06:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 19:06:31,053 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-21 19:06:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:06:31,094 INFO L225 Difference]: With dead ends: 1306 [2020-08-21 19:06:31,095 INFO L226 Difference]: Without dead ends: 810 [2020-08-21 19:06:31,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-21 19:06:31,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-21 19:06:31,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-21 19:06:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-21 19:06:31,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-21 19:06:31,288 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-21 19:06:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:06:31,289 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-21 19:06:31,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 19:06:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-21 19:06:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 19:06:31,295 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:06:31,295 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 19:06:31,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:06:31,296 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:06:31,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:06:31,296 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-21 19:06:31,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:06:31,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637633427] [2020-08-21 19:06:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:06:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,657 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 19:06:31,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:06:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:06:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 19:06:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 19:06:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 19:06:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 19:06:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:06:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 19:06:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:06:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 19:06:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 19:06:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 19:06:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 19:06:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 19:06:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 19:06:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 19:06:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 19:06:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 19:06:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 19:06:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 19:06:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 19:06:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:31,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 19:06:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:32,053 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 19:06:32,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637633427] [2020-08-21 19:06:32,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:06:32,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 19:06:32,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165571670] [2020-08-21 19:06:32,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 19:06:32,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:06:32,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 19:06:32,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:06:32,075 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-21 19:06:32,331 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 19:06:32,481 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 19:06:32,764 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 19:06:32,921 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:06:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:06:39,004 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-21 19:06:39,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 19:06:39,004 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-21 19:06:39,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:06:39,013 INFO L225 Difference]: With dead ends: 1277 [2020-08-21 19:06:39,013 INFO L226 Difference]: Without dead ends: 810 [2020-08-21 19:06:39,016 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 [2020-08-21 19:06:39,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-21 19:06:39,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-21 19:06:39,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-21 19:06:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-21 19:06:39,110 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-21 19:06:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:06:39,111 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-21 19:06:39,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 19:06:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-21 19:06:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 19:06:39,115 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:06:39,116 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 19:06:39,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:06:39,116 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:06:39,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:06:39,117 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-21 19:06:39,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:06:39,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645745764] [2020-08-21 19:06:39,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:06:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,502 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 19:06:39,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:06:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:06:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 19:06:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 19:06:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 19:06:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 19:06:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:06:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 19:06:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:06:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 19:06:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 19:06:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 19:06:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 19:06:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 19:06:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 19:06:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 19:06:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 19:06:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 19:06:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 19:06:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 19:06:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 19:06:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 19:06:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:39,992 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 19:06:39,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645745764] [2020-08-21 19:06:39,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:06:39,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 19:06:39,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032011724] [2020-08-21 19:06:39,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:06:39,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:06:39,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:06:39,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:06:39,995 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-21 19:06:40,279 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 19:06:40,410 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:06:40,588 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:06:47,676 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 19:06:47,857 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 19:06:53,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:06:53,116 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-21 19:06:53,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 19:06:53,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-21 19:06:53,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:06:53,140 INFO L225 Difference]: With dead ends: 1991 [2020-08-21 19:06:53,140 INFO L226 Difference]: Without dead ends: 1532 [2020-08-21 19:06:53,143 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 19:06:53,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-21 19:06:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-21 19:06:53,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 19:06:53,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-21 19:06:53,336 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-21 19:06:53,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:06:53,337 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-21 19:06:53,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:06:53,337 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-21 19:06:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 19:06:53,341 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:06:53,341 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 19:06:53,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:06:53,342 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:06:53,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:06:53,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-21 19:06:53,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:06:53,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230201625] [2020-08-21 19:06:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:06:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:53,749 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 19:06:53,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:06:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:53,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:06:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:53,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 19:06:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:53,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 19:06:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:53,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 19:06:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 19:06:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:06:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 19:06:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:06:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 19:06:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 19:06:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 19:06:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 19:06:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 19:06:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 19:06:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 19:06:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 19:06:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 19:06:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 19:06:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 19:06:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 19:06:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 19:06:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:06:54,353 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 19:06:54,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230201625] [2020-08-21 19:06:54,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:06:54,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 19:06:54,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654850731] [2020-08-21 19:06:54,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 19:06:54,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:06:54,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 19:06:54,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:06:54,357 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-21 19:06:54,682 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 19:06:54,810 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:06:54,991 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:07:03,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:07:03,059 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-21 19:07:03,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:07:03,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-21 19:07:03,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:07:03,071 INFO L225 Difference]: With dead ends: 2455 [2020-08-21 19:07:03,071 INFO L226 Difference]: Without dead ends: 1521 [2020-08-21 19:07:03,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-21 19:07:03,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-21 19:07:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-21 19:07:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 19:07:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-21 19:07:03,248 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-21 19:07:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:07:03,249 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-21 19:07:03,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 19:07:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-21 19:07:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 19:07:03,252 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:07:03,253 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 19:07:03,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 19:07:03,253 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:07:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:07:03,253 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-21 19:07:03,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:07:03,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716994500] [2020-08-21 19:07:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:07:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,628 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 19:07:03,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:07:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:07:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 19:07:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 19:07:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 19:07:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 19:07:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:07:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 19:07:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:07:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 19:07:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 19:07:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 19:07:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 19:07:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 19:07:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 19:07:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 19:07:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 19:07:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 19:07:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 19:07:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 19:07:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 19:07:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:03,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 19:07:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:04,023 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 19:07:04,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716994500] [2020-08-21 19:07:04,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:07:04,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 19:07:04,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989940673] [2020-08-21 19:07:04,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 19:07:04,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:07:04,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 19:07:04,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:07:04,029 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-21 19:07:04,425 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 19:07:04,636 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:07:04,948 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:07:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:07:11,071 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-21 19:07:11,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:07:11,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-21 19:07:11,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:07:11,082 INFO L225 Difference]: With dead ends: 2451 [2020-08-21 19:07:11,082 INFO L226 Difference]: Without dead ends: 1517 [2020-08-21 19:07:11,086 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 [2020-08-21 19:07:11,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-21 19:07:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-21 19:07:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 19:07:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-21 19:07:11,261 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-21 19:07:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:07:11,261 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-21 19:07:11,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 19:07:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-21 19:07:11,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 19:07:11,263 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:07:11,264 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 19:07:11,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 19:07:11,264 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:07:11,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:07:11,265 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-21 19:07:11,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:07:11,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328272656] [2020-08-21 19:07:11,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:07:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,556 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 19:07:11,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:07:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:07:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 19:07:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 19:07:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 19:07:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 19:07:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:07:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 19:07:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:07:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 19:07:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 19:07:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 19:07:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 19:07:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 19:07:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 19:07:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 19:07:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 19:07:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 19:07:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 19:07:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 19:07:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 19:07:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:11,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 19:07:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:07:12,059 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 19:07:12,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328272656] [2020-08-21 19:07:12,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:07:12,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 19:07:12,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304008221] [2020-08-21 19:07:12,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 19:07:12,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:07:12,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 19:07:12,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:07:12,066 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-21 19:07:12,343 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 19:07:12,467 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 19:07:12,669 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 126