/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 15:53:06,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 15:53:06,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 15:53:06,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 15:53:06,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 15:53:06,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 15:53:06,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 15:53:06,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 15:53:06,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 15:53:06,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 15:53:06,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 15:53:06,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 15:53:06,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 15:53:06,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 15:53:06,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 15:53:06,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 15:53:06,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 15:53:06,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 15:53:06,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 15:53:06,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 15:53:06,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 15:53:06,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 15:53:06,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 15:53:06,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 15:53:06,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 15:53:06,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 15:53:06,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 15:53:06,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 15:53:06,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 15:53:06,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 15:53:06,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 15:53:06,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 15:53:06,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 15:53:06,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 15:53:06,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 15:53:06,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 15:53:06,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 15:53:06,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 15:53:06,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 15:53:06,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 15:53:06,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 15:53:06,461 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 15:53:06,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 15:53:06,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 15:53:06,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 15:53:06,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 15:53:06,500 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 15:53:06,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 15:53:06,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 15:53:06,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 15:53:06,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 15:53:06,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 15:53:06,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 15:53:06,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 15:53:06,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 15:53:06,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 15:53:06,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 15:53:06,502 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 15:53:06,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 15:53:06,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 15:53:06,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 15:53:06,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 15:53:06,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 15:53:06,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 15:53:06,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 15:53:06,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 15:53:06,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 15:53:06,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 15:53:06,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 15:53:06,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 15:53:06,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 15:53:06,505 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=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 15:53:06,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 15:53:06,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 15:53:06,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 15:53:06,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 15:53:06,832 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 15:53:06,832 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-21 15:53:06,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9c7b5019/2353b34d10834d2081ab7fb900564bf5/FLAGaa2731c77 [2020-08-21 15:53:07,470 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 15:53:07,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-21 15:53:07,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9c7b5019/2353b34d10834d2081ab7fb900564bf5/FLAGaa2731c77 [2020-08-21 15:53:07,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9c7b5019/2353b34d10834d2081ab7fb900564bf5 [2020-08-21 15:53:07,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 15:53:07,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 15:53:07,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 15:53:07,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 15:53:07,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 15:53:07,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:53:07" (1/1) ... [2020-08-21 15:53:07,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144c4f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:07, skipping insertion in model container [2020-08-21 15:53:07,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:53:07" (1/1) ... [2020-08-21 15:53:07,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 15:53:07,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 15:53:08,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:53:08,411 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 15:53:08,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:53:08,576 INFO L208 MainTranslator]: Completed translation [2020-08-21 15:53:08,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08 WrapperNode [2020-08-21 15:53:08,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 15:53:08,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 15:53:08,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 15:53:08,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 15:53:08,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... [2020-08-21 15:53:08,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... [2020-08-21 15:53:08,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... [2020-08-21 15:53:08,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... [2020-08-21 15:53:08,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... [2020-08-21 15:53:08,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... [2020-08-21 15:53:08,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... [2020-08-21 15:53:08,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 15:53:08,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 15:53:08,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 15:53:08,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 15:53:08,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 15:53:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 15:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 15:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-21 15:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-21 15:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-21 15:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-21 15:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-21 15:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-21 15:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-21 15:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-21 15:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-21 15:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-21 15:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-21 15:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-21 15:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-21 15:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-21 15:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-21 15:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-08-21 15:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-21 15:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-21 15:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-21 15:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-21 15:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-21 15:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-21 15:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-21 15:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-21 15:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-21 15:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-21 15:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-21 15:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-21 15:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-21 15:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-21 15:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-08-21 15:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-21 15:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-21 15:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-21 15:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-21 15:53:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 15:53:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 15:53:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 15:53:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-21 15:53:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-21 15:53:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-21 15:53:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-21 15:53:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-21 15:53:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-21 15:53:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-21 15:53:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-21 15:53:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-21 15:53:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-21 15:53:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-21 15:53:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-21 15:53:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-21 15:53:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-21 15:53:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-21 15:53:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-08-21 15:53:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-21 15:53:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-21 15:53:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-21 15:53:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-21 15:53:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-21 15:53:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-21 15:53:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-21 15:53:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-21 15:53:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-21 15:53:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-21 15:53:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-21 15:53:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-21 15:53:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-21 15:53:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-21 15:53:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-21 15:53:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-08-21 15:53:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-21 15:53:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-21 15:53:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-21 15:53:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-21 15:53:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-21 15:53:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-21 15:53:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-21 15:53:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-21 15:53:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-21 15:53:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-21 15:53:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-21 15:53:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-21 15:53:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 15:53:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 15:53:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 15:53:09,981 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 15:53:09,981 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-08-21 15:53:09,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:53:09 BoogieIcfgContainer [2020-08-21 15:53:09,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 15:53:09,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 15:53:09,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 15:53:09,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 15:53:09,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 03:53:07" (1/3) ... [2020-08-21 15:53:09,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fc1745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:53:09, skipping insertion in model container [2020-08-21 15:53:09,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:53:08" (2/3) ... [2020-08-21 15:53:09,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fc1745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:53:09, skipping insertion in model container [2020-08-21 15:53:09,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:53:09" (3/3) ... [2020-08-21 15:53:09,998 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-08-21 15:53:10,009 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 15:53:10,018 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 15:53:10,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 15:53:10,059 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 15:53:10,059 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 15:53:10,059 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 15:53:10,059 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 15:53:10,059 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 15:53:10,060 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 15:53:10,060 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 15:53:10,060 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 15:53:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2020-08-21 15:53:10,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-21 15:53:10,115 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:53:10,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:53:10,117 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:53:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:53:10,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1383974208, now seen corresponding path program 1 times [2020-08-21 15:53:10,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:53:10,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872426412] [2020-08-21 15:53:10,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:53:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,072 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-21 15:53:11,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:53:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:53:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:53:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 15:53:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 15:53:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-21 15:53:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:53:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:53:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 15:53:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 15:53:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:53:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 15:53:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 15:53:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:53:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 15:53:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 15:53:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:53:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 15:53:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 15:53:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 15:53:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 15:53:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-21 15:53:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:53:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:11,724 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 15:53:11,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872426412] [2020-08-21 15:53:11,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:53:11,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 15:53:11,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861594804] [2020-08-21 15:53:11,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 15:53:11,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:53:11,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 15:53:11,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-21 15:53:11,753 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 12 states. [2020-08-21 15:53:12,158 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-21 15:53:12,315 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-21 15:53:12,671 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-21 15:53:12,868 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 15:53:15,315 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-21 15:53:15,661 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-21 15:53:15,981 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-21 15:53:16,156 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-21 15:53:16,483 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-21 15:53:16,670 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-21 15:53:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:53:25,315 INFO L93 Difference]: Finished difference Result 1409 states and 2346 transitions. [2020-08-21 15:53:25,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 15:53:25,323 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-21 15:53:25,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:53:25,355 INFO L225 Difference]: With dead ends: 1409 [2020-08-21 15:53:25,355 INFO L226 Difference]: Without dead ends: 887 [2020-08-21 15:53:25,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-08-21 15:53:25,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-08-21 15:53:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 522. [2020-08-21 15:53:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-08-21 15:53:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 765 transitions. [2020-08-21 15:53:25,576 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 765 transitions. Word has length 254 [2020-08-21 15:53:25,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:53:25,577 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 765 transitions. [2020-08-21 15:53:25,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 15:53:25,577 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 765 transitions. [2020-08-21 15:53:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-21 15:53:25,586 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:53:25,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:53:25,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 15:53:25,590 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:53:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:53:25,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1062988672, now seen corresponding path program 1 times [2020-08-21 15:53:25,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:53:25,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616704686] [2020-08-21 15:53:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:53:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,011 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-21 15:53:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:53:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:53:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:53:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 15:53:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 15:53:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-21 15:53:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:53:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:53:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 15:53:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 15:53:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:53:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 15:53:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 15:53:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:53:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 15:53:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 15:53:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:53:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 15:53:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 15:53:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 15:53:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 15:53:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-21 15:53:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:53:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:26,434 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 15:53:26,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616704686] [2020-08-21 15:53:26,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:53:26,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 15:53:26,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981697151] [2020-08-21 15:53:26,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 15:53:26,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:53:26,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 15:53:26,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-21 15:53:26,439 INFO L87 Difference]: Start difference. First operand 522 states and 765 transitions. Second operand 12 states. [2020-08-21 15:53:26,767 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-21 15:53:26,957 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-21 15:53:27,286 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-21 15:53:27,474 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 15:53:29,918 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-21 15:53:30,232 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-21 15:53:30,401 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-21 15:53:30,711 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-21 15:53:30,874 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-21 15:53:31,194 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-21 15:53:39,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:53:39,213 INFO L93 Difference]: Finished difference Result 1386 states and 2171 transitions. [2020-08-21 15:53:39,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 15:53:39,214 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-21 15:53:39,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:53:39,223 INFO L225 Difference]: With dead ends: 1386 [2020-08-21 15:53:39,223 INFO L226 Difference]: Without dead ends: 888 [2020-08-21 15:53:39,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-08-21 15:53:39,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-08-21 15:53:39,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 527. [2020-08-21 15:53:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-08-21 15:53:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions. [2020-08-21 15:53:39,329 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 254 [2020-08-21 15:53:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:53:39,329 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 769 transitions. [2020-08-21 15:53:39,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 15:53:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions. [2020-08-21 15:53:39,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-21 15:53:39,334 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:53:39,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:53:39,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 15:53:39,335 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:53:39,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:53:39,335 INFO L82 PathProgramCache]: Analyzing trace with hash 458447040, now seen corresponding path program 1 times [2020-08-21 15:53:39,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:53:39,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206746647] [2020-08-21 15:53:39,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:53:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:39,799 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-21 15:53:39,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:53:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:39,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:53:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:39,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:53:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:39,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 15:53:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 15:53:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-21 15:53:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:53:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:53:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 15:53:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 15:53:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:53:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 15:53:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 15:53:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:53:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 15:53:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 15:53:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:53:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 15:53:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 15:53:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 15:53:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 15:53:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-21 15:53:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:53:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:40,310 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 15:53:40,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206746647] [2020-08-21 15:53:40,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:53:40,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 15:53:40,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675837676] [2020-08-21 15:53:40,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 15:53:40,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:53:40,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 15:53:40,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 15:53:40,313 INFO L87 Difference]: Start difference. First operand 527 states and 769 transitions. Second operand 9 states. [2020-08-21 15:53:40,604 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-21 15:53:40,745 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 15:53:40,975 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 15:53:48,558 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-21 15:53:48,749 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-21 15:53:54,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:53:54,351 INFO L93 Difference]: Finished difference Result 2134 states and 3311 transitions. [2020-08-21 15:53:54,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 15:53:54,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2020-08-21 15:53:54,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:53:54,364 INFO L225 Difference]: With dead ends: 2134 [2020-08-21 15:53:54,365 INFO L226 Difference]: Without dead ends: 1639 [2020-08-21 15:53:54,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-21 15:53:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-08-21 15:53:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1040. [2020-08-21 15:53:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-21 15:53:54,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1532 transitions. [2020-08-21 15:53:54,553 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1532 transitions. Word has length 254 [2020-08-21 15:53:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:53:54,554 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1532 transitions. [2020-08-21 15:53:54,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 15:53:54,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1532 transitions. [2020-08-21 15:53:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-21 15:53:54,559 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:53:54,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:53:54,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 15:53:54,559 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:53:54,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:53:54,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1062661057, now seen corresponding path program 1 times [2020-08-21 15:53:54,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:53:54,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844816125] [2020-08-21 15:53:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:53:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:54,908 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-21 15:53:54,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:53:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:54,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:53:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:54,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:53:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 15:53:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 15:53:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-21 15:53:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:53:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:53:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 15:53:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 15:53:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:53:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 15:53:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 15:53:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:53:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 15:53:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 15:53:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:53:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 15:53:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 15:53:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 15:53:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 15:53:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-21 15:53:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:53:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:53:55,397 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 15:53:55,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844816125] [2020-08-21 15:53:55,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:53:55,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 15:53:55,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049611625] [2020-08-21 15:53:55,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 15:53:55,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:53:55,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 15:53:55,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 15:53:55,401 INFO L87 Difference]: Start difference. First operand 1040 states and 1532 transitions. Second operand 10 states. [2020-08-21 15:53:55,767 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-21 15:53:55,959 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 15:53:56,217 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 15:54:04,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:54:04,122 INFO L93 Difference]: Finished difference Result 2636 states and 4012 transitions. [2020-08-21 15:54:04,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 15:54:04,123 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-08-21 15:54:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:54:04,134 INFO L225 Difference]: With dead ends: 2636 [2020-08-21 15:54:04,134 INFO L226 Difference]: Without dead ends: 1628 [2020-08-21 15:54:04,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 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 15:54:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-08-21 15:54:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1040. [2020-08-21 15:54:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-21 15:54:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1525 transitions. [2020-08-21 15:54:04,312 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1525 transitions. Word has length 254 [2020-08-21 15:54:04,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:54:04,313 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1525 transitions. [2020-08-21 15:54:04,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 15:54:04,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1525 transitions. [2020-08-21 15:54:04,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-21 15:54:04,316 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:54:04,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:54:04,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 15:54:04,317 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:54:04,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:54:04,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1143415041, now seen corresponding path program 1 times [2020-08-21 15:54:04,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:54:04,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127837146] [2020-08-21 15:54:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:54:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:04,725 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-21 15:54:04,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:54:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:54:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:04,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:54:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:04,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 15:54:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:04,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 15:54:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-21 15:54:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:54:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:54:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 15:54:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 15:54:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:54:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 15:54:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 15:54:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:54:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 15:54:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 15:54:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:54:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 15:54:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 15:54:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 15:54:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 15:54:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-21 15:54:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:54:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:54:05,372 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 15:54:05,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127837146] [2020-08-21 15:54:05,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:54:05,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 15:54:05,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49472355] [2020-08-21 15:54:05,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 15:54:05,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:54:05,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 15:54:05,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 15:54:05,376 INFO L87 Difference]: Start difference. First operand 1040 states and 1525 transitions. Second operand 10 states. [2020-08-21 15:54:05,836 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-21 15:54:06,011 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 15:54:06,189 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 135