/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -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-c90d42b [2020-09-24 15:09:59,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:09:59,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:09:59,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:09:59,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:09:59,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:09:59,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:09:59,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:09:59,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:09:59,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:09:59,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:09:59,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:09:59,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:09:59,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:09:59,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:09:59,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:09:59,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:09:59,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:09:59,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:09:59,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:09:59,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:09:59,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:09:59,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:09:59,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:09:59,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:09:59,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:09:59,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:09:59,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:09:59,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:09:59,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:09:59,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:09:59,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:09:59,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:09:59,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:09:59,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:09:59,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:09:59,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:09:59,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:09:59,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:09:59,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:09:59,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:09:59,803 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 [2020-09-24 15:09:59,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:09:59,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:09:59,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:09:59,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:09:59,855 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:09:59,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:09:59,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:09:59,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:09:59,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:09:59,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:09:59,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:09:59,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:09:59,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:09:59,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:09:59,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:09:59,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:09:59,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:09:59,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:09:59,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:09:59,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:09:59,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:09:59,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:09:59,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:09:59,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:09:59,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:09:59,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:09:59,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:09:59,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:09:59,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:09:59,862 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.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 15:10:00,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:10:00,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:10:00,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:10:00,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:10:00,395 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:10:00,396 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-09-24 15:10:00,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e32f6dba/a311b56901684cf89661be78a58ddf90/FLAG15fab26e1 [2020-09-24 15:10:01,119 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:10:01,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-09-24 15:10:01,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e32f6dba/a311b56901684cf89661be78a58ddf90/FLAG15fab26e1 [2020-09-24 15:10:01,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e32f6dba/a311b56901684cf89661be78a58ddf90 [2020-09-24 15:10:01,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:10:01,381 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:10:01,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:10:01,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:10:01,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:10:01,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35de7d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01, skipping insertion in model container [2020-09-24 15:10:01,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:10:01,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:10:01,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:10:01,937 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:10:02,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:10:02,179 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:10:02,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02 WrapperNode [2020-09-24 15:10:02,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:10:02,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:10:02,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:10:02,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:10:02,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (1/1) ... [2020-09-24 15:10:02,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (1/1) ... [2020-09-24 15:10:02,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (1/1) ... [2020-09-24 15:10:02,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (1/1) ... [2020-09-24 15:10:02,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (1/1) ... [2020-09-24 15:10:02,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (1/1) ... [2020-09-24 15:10:02,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (1/1) ... [2020-09-24 15:10:02,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:10:02,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:10:02,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:10:02,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:10:02,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (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 [2020-09-24 15:10:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:10:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:10:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-24 15:10:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-24 15:10:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-24 15:10:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-09-24 15:10:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-09-24 15:10:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-09-24 15:10:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-09-24 15:10:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-09-24 15:10:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-09-24 15:10:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-09-24 15:10:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-09-24 15:10:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-09-24 15:10:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-09-24 15:10:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-09-24 15:10:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-09-24 15:10:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-09-24 15:10:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-24 15:10:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-24 15:10:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-09-24 15:10:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-09-24 15:10:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-09-24 15:10:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-09-24 15:10:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-09-24 15:10:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-09-24 15:10:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-09-24 15:10:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-09-24 15:10:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-09-24 15:10:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-09-24 15:10:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-09-24 15:10:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-09-24 15:10:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-09-24 15:10:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-24 15:10:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-24 15:10:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-24 15:10:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-24 15:10:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-24 15:10:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-24 15:10:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-24 15:10:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-24 15:10:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-24 15:10:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-24 15:10:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-24 15:10:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-24 15:10:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-24 15:10:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:10:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:10:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:10:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-24 15:10:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-24 15:10:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-24 15:10:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-09-24 15:10:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-09-24 15:10:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-09-24 15:10:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-09-24 15:10:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-09-24 15:10:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-09-24 15:10:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-09-24 15:10:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-09-24 15:10:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-09-24 15:10:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-09-24 15:10:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-09-24 15:10:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-09-24 15:10:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-09-24 15:10:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-24 15:10:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-24 15:10:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-24 15:10:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-09-24 15:10:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-09-24 15:10:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-09-24 15:10:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-09-24 15:10:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-09-24 15:10:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-09-24 15:10:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-09-24 15:10:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-09-24 15:10:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-09-24 15:10:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-09-24 15:10:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-09-24 15:10:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-09-24 15:10:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-09-24 15:10:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-24 15:10:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-24 15:10:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-24 15:10:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-24 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-24 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-24 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-24 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-24 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-24 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-24 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-24 15:10:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-24 15:10:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:10:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:10:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:10:03,946 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:10:03,946 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-09-24 15:10:03,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:10:03 BoogieIcfgContainer [2020-09-24 15:10:03,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:10:03,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:10:03,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:10:03,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:10:03,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:10:01" (1/3) ... [2020-09-24 15:10:03,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5928e89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:10:03, skipping insertion in model container [2020-09-24 15:10:03,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:02" (2/3) ... [2020-09-24 15:10:03,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5928e89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:10:03, skipping insertion in model container [2020-09-24 15:10:03,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:10:03" (3/3) ... [2020-09-24 15:10:03,979 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-09-24 15:10:03,992 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:10:04,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:10:04,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:10:04,066 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:10:04,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:10:04,066 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:10:04,067 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:10:04,067 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:10:04,067 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:10:04,067 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:10:04,067 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:10:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states. [2020-09-24 15:10:04,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-24 15:10:04,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:04,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:04,153 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:04,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2106220204, now seen corresponding path program 1 times [2020-09-24 15:10:04,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:04,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729153056] [2020-09-24 15:10:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,210 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 15:10:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-24 15:10:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-24 15:10:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,556 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-24 15:10:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:10:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-24 15:10:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 15:10:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:10:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:10:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 15:10:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 15:10:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-24 15:10:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 15:10:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 15:10:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-24 15:10:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-24 15:10:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:10:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:10:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 15:10:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 15:10:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 15:10:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-24 15:10:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:05,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-24 15:10:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:10:06,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729153056] [2020-09-24 15:10:06,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:06,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:10:06,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086817344] [2020-09-24 15:10:06,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:10:06,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:06,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:10:06,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:10:06,051 INFO L87 Difference]: Start difference. First operand 926 states. Second operand 8 states. [2020-09-24 15:10:06,344 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-24 15:10:06,551 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 15:10:07,255 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-24 15:10:07,445 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 15:10:07,936 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-24 15:10:08,167 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 15:10:13,361 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-24 15:10:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:18,533 INFO L93 Difference]: Finished difference Result 2394 states and 3287 transitions. [2020-09-24 15:10:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:10:18,536 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-24 15:10:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:18,592 INFO L225 Difference]: With dead ends: 2394 [2020-09-24 15:10:18,592 INFO L226 Difference]: Without dead ends: 1560 [2020-09-24 15:10:18,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:10:18,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-09-24 15:10:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 915. [2020-09-24 15:10:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-09-24 15:10:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1158 transitions. [2020-09-24 15:10:18,837 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1158 transitions. Word has length 410 [2020-09-24 15:10:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:18,838 INFO L479 AbstractCegarLoop]: Abstraction has 915 states and 1158 transitions. [2020-09-24 15:10:18,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:10:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1158 transitions. [2020-09-24 15:10:18,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-24 15:10:18,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:18,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:18,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:10:18,856 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:18,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:18,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1066186508, now seen corresponding path program 1 times [2020-09-24 15:10:18,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:18,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102709034] [2020-09-24 15:10:18,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,363 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 15:10:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-24 15:10:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-24 15:10:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:10:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-24 15:10:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 15:10:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:10:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:10:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 15:10:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 15:10:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-24 15:10:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 15:10:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 15:10:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-24 15:10:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-24 15:10:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:10:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:10:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 15:10:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 15:10:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 15:10:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-24 15:10:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:19,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-24 15:10:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:10:20,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102709034] [2020-09-24 15:10:20,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:20,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:10:20,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277468707] [2020-09-24 15:10:20,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:10:20,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:20,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:10:20,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:10:20,082 INFO L87 Difference]: Start difference. First operand 915 states and 1158 transitions. Second operand 8 states. [2020-09-24 15:10:20,430 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-24 15:10:20,691 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 15:10:21,521 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-24 15:10:21,670 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-24 15:10:21,854 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 15:10:22,336 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-24 15:10:22,564 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 15:10:27,658 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-24 15:10:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:33,094 INFO L93 Difference]: Finished difference Result 2363 states and 3085 transitions. [2020-09-24 15:10:33,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:10:33,095 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-24 15:10:33,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:33,112 INFO L225 Difference]: With dead ends: 2363 [2020-09-24 15:10:33,112 INFO L226 Difference]: Without dead ends: 1559 [2020-09-24 15:10:33,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:10:33,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-09-24 15:10:33,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 914. [2020-09-24 15:10:33,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2020-09-24 15:10:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1156 transitions. [2020-09-24 15:10:33,232 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1156 transitions. Word has length 410 [2020-09-24 15:10:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:33,233 INFO L479 AbstractCegarLoop]: Abstraction has 914 states and 1156 transitions. [2020-09-24 15:10:33,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:10:33,233 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1156 transitions. [2020-09-24 15:10:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-24 15:10:33,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:33,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:33,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:10:33,242 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:33,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:33,243 INFO L82 PathProgramCache]: Analyzing trace with hash -642400108, now seen corresponding path program 1 times [2020-09-24 15:10:33,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:33,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689124715] [2020-09-24 15:10:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:33,700 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 15:10:33,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:33,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-24 15:10:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:33,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:33,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-24 15:10:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:10:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:33,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-24 15:10:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 15:10:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:10:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:10:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 15:10:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 15:10:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-24 15:10:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 15:10:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 15:10:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-24 15:10:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-24 15:10:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:10:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:10:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 15:10:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 15:10:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 15:10:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-24 15:10:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-24 15:10:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:10:34,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689124715] [2020-09-24 15:10:34,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:34,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:10:34,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916696720] [2020-09-24 15:10:34,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:10:34,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:34,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:10:34,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:10:34,254 INFO L87 Difference]: Start difference. First operand 914 states and 1156 transitions. Second operand 8 states. [2020-09-24 15:10:34,513 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-24 15:10:34,738 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 15:10:35,498 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-24 15:10:35,681 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-24 15:10:35,878 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 15:10:36,324 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-24 15:10:36,548 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 15:10:41,651 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-24 15:10:47,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:47,258 INFO L93 Difference]: Finished difference Result 2356 states and 3075 transitions. [2020-09-24 15:10:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:10:47,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-24 15:10:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:47,277 INFO L225 Difference]: With dead ends: 2356 [2020-09-24 15:10:47,277 INFO L226 Difference]: Without dead ends: 1558 [2020-09-24 15:10:47,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:10:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-09-24 15:10:47,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 913. [2020-09-24 15:10:47,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-09-24 15:10:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1154 transitions. [2020-09-24 15:10:47,478 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1154 transitions. Word has length 410 [2020-09-24 15:10:47,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:47,480 INFO L479 AbstractCegarLoop]: Abstraction has 913 states and 1154 transitions. [2020-09-24 15:10:47,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:10:47,481 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1154 transitions. [2020-09-24 15:10:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-24 15:10:47,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:47,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:47,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:10:47,492 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:47,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:47,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1361381428, now seen corresponding path program 1 times [2020-09-24 15:10:47,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:47,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069967949] [2020-09-24 15:10:47,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,128 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 15:10:48,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-24 15:10:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-24 15:10:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:10:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-24 15:10:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 15:10:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:10:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:10:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 15:10:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 15:10:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-24 15:10:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 15:10:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 15:10:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-24 15:10:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-24 15:10:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:10:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:10:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 15:10:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 15:10:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 15:10:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-24 15:10:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-24 15:10:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:10:48,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069967949] [2020-09-24 15:10:48,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:48,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:10:48,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413857225] [2020-09-24 15:10:48,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:10:48,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:48,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:10:48,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:10:48,976 INFO L87 Difference]: Start difference. First operand 913 states and 1154 transitions. Second operand 8 states. [2020-09-24 15:10:49,277 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-24 15:10:49,544 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 15:10:49,778 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-09-24 15:10:50,434 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-24 15:10:50,594 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-24 15:10:50,768 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 15:10:51,239 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-24 15:10:51,471 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 15:10:56,491 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 180