/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 14:16:37,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 14:16:37,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 14:16:37,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 14:16:37,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 14:16:37,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 14:16:37,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 14:16:37,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 14:16:37,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 14:16:37,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 14:16:37,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 14:16:37,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 14:16:37,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 14:16:37,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 14:16:37,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 14:16:37,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 14:16:37,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 14:16:37,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 14:16:37,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 14:16:37,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 14:16:37,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 14:16:37,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 14:16:37,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 14:16:37,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 14:16:37,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 14:16:37,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 14:16:37,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 14:16:37,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 14:16:37,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 14:16:37,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 14:16:37,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 14:16:37,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 14:16:37,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 14:16:37,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 14:16:37,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 14:16:37,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 14:16:37,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 14:16:37,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 14:16:37,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 14:16:37,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 14:16:37,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 14:16:37,547 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 14:16:37,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 14:16:37,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 14:16:37,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 14:16:37,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 14:16:37,570 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 14:16:37,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 14:16:37,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 14:16:37,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 14:16:37,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 14:16:37,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 14:16:37,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 14:16:37,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 14:16:37,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 14:16:37,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 14:16:37,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 14:16:37,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 14:16:37,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 14:16:37,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 14:16:37,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 14:16:37,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 14:16:37,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 14:16:37,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:16:37,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 14:16:37,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 14:16:37,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 14:16:37,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 14:16:37,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 14:16:37,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 14:16:37,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 14:16:37,575 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 -> log-additional-information=true; [2020-08-21 14:16:37,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 14:16:37,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 14:16:37,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 14:16:37,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 14:16:37,916 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 14:16:37,917 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-21 14:16:37,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75152b907/b241df59dafb4ce1949d133de59353e1/FLAG6328bb313 [2020-08-21 14:16:38,501 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 14:16:38,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-21 14:16:38,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75152b907/b241df59dafb4ce1949d133de59353e1/FLAG6328bb313 [2020-08-21 14:16:38,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75152b907/b241df59dafb4ce1949d133de59353e1 [2020-08-21 14:16:38,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 14:16:38,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 14:16:38,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 14:16:38,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 14:16:38,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 14:16:38,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:16:38" (1/1) ... [2020-08-21 14:16:38,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8021c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:38, skipping insertion in model container [2020-08-21 14:16:38,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:16:38" (1/1) ... [2020-08-21 14:16:38,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 14:16:38,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 14:16:39,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:16:39,405 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 14:16:39,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:16:39,576 INFO L208 MainTranslator]: Completed translation [2020-08-21 14:16:39,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39 WrapperNode [2020-08-21 14:16:39,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 14:16:39,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 14:16:39,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 14:16:39,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 14:16:39,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (1/1) ... [2020-08-21 14:16:39,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (1/1) ... [2020-08-21 14:16:39,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (1/1) ... [2020-08-21 14:16:39,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (1/1) ... [2020-08-21 14:16:39,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (1/1) ... [2020-08-21 14:16:39,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (1/1) ... [2020-08-21 14:16:39,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (1/1) ... [2020-08-21 14:16:39,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 14:16:39,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 14:16:39,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 14:16:39,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 14:16:39,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (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 14:16:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 14:16:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 14:16:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-21 14:16:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-21 14:16:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-21 14:16:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-21 14:16:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-21 14:16:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-21 14:16:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-21 14:16:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-21 14:16:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-21 14:16:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-21 14:16:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-21 14:16:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-21 14:16:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-21 14:16:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-21 14:16:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-21 14:16:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-21 14:16:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-21 14:16:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-21 14:16:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-21 14:16:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-21 14:16:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-21 14:16:39,797 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-21 14:16:39,797 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-21 14:16:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-21 14:16:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-21 14:16:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-21 14:16:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-21 14:16:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-21 14:16:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-21 14:16:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-21 14:16:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-21 14:16:39,800 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-21 14:16:39,800 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-21 14:16:39,800 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-21 14:16:39,800 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-21 14:16:39,800 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-21 14:16:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-21 14:16:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-21 14:16:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-21 14:16:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-21 14:16:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-21 14:16:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-21 14:16:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 14:16:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 14:16:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 14:16:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-21 14:16:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-21 14:16:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-21 14:16:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-21 14:16:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-21 14:16:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-21 14:16:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-21 14:16:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-21 14:16:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-21 14:16:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-21 14:16:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-21 14:16:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-21 14:16:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-21 14:16:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-21 14:16:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-21 14:16:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-21 14:16:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-21 14:16:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-21 14:16:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-21 14:16:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-21 14:16:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-21 14:16:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-21 14:16:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-21 14:16:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-21 14:16:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-21 14:16:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-21 14:16:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-21 14:16:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-21 14:16:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-21 14:16:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-21 14:16:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-21 14:16:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-21 14:16:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-21 14:16:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-21 14:16:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-21 14:16:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-21 14:16:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-21 14:16:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-21 14:16:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-21 14:16:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-21 14:16:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-21 14:16:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-21 14:16:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 14:16:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 14:16:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 14:16:41,130 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 14:16:41,131 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-21 14:16:41,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:16:41 BoogieIcfgContainer [2020-08-21 14:16:41,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 14:16:41,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 14:16:41,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 14:16:41,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 14:16:41,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 02:16:38" (1/3) ... [2020-08-21 14:16:41,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a03790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:16:41, skipping insertion in model container [2020-08-21 14:16:41,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:16:39" (2/3) ... [2020-08-21 14:16:41,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a03790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:16:41, skipping insertion in model container [2020-08-21 14:16:41,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:16:41" (3/3) ... [2020-08-21 14:16:41,149 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-21 14:16:41,162 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 14:16:41,171 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 14:16:41,189 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 14:16:41,218 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 14:16:41,219 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 14:16:41,219 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 14:16:41,219 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 14:16:41,219 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 14:16:41,219 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 14:16:41,219 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 14:16:41,219 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 14:16:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-21 14:16:41,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 14:16:41,267 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:16:41,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:16:41,269 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:16:41,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:16:41,275 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-21 14:16:41,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:16:41,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143477410] [2020-08-21 14:16:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:16:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,139 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 14:16:42,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:16:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:16:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:16:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 14:16:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:16:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 14:16:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:16:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 14:16:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 14:16:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:16:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 14:16:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 14:16:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 14:16:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 14:16:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 14:16:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 14:16:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 14:16:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:16:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:16:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 14:16:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 14:16:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 14:16:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:42,691 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 14:16:42,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143477410] [2020-08-21 14:16:42,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:16:42,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 14:16:42,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909125795] [2020-08-21 14:16:42,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 14:16:42,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:16:42,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 14:16:42,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 14:16:42,719 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-21 14:16:43,049 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 14:16:43,199 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 14:16:43,476 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 14:16:43,669 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:16:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:16:51,215 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-21 14:16:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 14:16:51,221 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-21 14:16:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:16:51,247 INFO L225 Difference]: With dead ends: 1306 [2020-08-21 14:16:51,247 INFO L226 Difference]: Without dead ends: 810 [2020-08-21 14:16:51,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-21 14:16:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-21 14:16:51,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-21 14:16:51,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-21 14:16:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-21 14:16:51,480 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-21 14:16:51,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:16:51,481 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-21 14:16:51,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 14:16:51,481 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-21 14:16:51,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 14:16:51,486 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:16:51,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:16:51,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 14:16:51,487 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:16:51,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:16:51,488 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-21 14:16:51,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:16:51,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122914465] [2020-08-21 14:16:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:16:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:51,808 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 14:16:51,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:16:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:51,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:16:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:51,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:16:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:51,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 14:16:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:16:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 14:16:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:16:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 14:16:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 14:16:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:16:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 14:16:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 14:16:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 14:16:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 14:16:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 14:16:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 14:16:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 14:16:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:16:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:16:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 14:16:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 14:16:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 14:16:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:52,230 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 14:16:52,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122914465] [2020-08-21 14:16:52,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:16:52,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 14:16:52,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805950433] [2020-08-21 14:16:52,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 14:16:52,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:16:52,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 14:16:52,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 14:16:52,236 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-21 14:16:52,500 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 14:16:52,641 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 14:16:52,911 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 14:16:53,064 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:16:59,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:16:59,197 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-21 14:16:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 14:16:59,197 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-21 14:16:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:16:59,209 INFO L225 Difference]: With dead ends: 1277 [2020-08-21 14:16:59,209 INFO L226 Difference]: Without dead ends: 810 [2020-08-21 14:16:59,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-08-21 14:16:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-21 14:16:59,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-21 14:16:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-21 14:16:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-21 14:16:59,297 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-21 14:16:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:16:59,297 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-21 14:16:59,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 14:16:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-21 14:16:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 14:16:59,301 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:16:59,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:16:59,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 14:16:59,302 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:16:59,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:16:59,303 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-21 14:16:59,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:16:59,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545937828] [2020-08-21 14:16:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:16:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,731 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 14:16:59,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:16:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:16:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:16:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 14:16:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:16:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 14:16:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:16:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 14:16:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 14:16:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:16:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 14:16:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 14:16:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:16:59,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 14:17:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 14:17:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 14:17:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 14:17:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 14:17:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:17:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:17:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 14:17:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 14:17:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 14:17:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:00,150 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 14:17:00,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545937828] [2020-08-21 14:17:00,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:17:00,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 14:17:00,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540158592] [2020-08-21 14:17:00,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 14:17:00,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:17:00,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 14:17:00,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 14:17:00,156 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-21 14:17:00,545 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 14:17:00,727 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:17:01,026 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:17:07,911 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-21 14:17:08,094 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-21 14:17:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:17:13,146 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-21 14:17:13,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 14:17:13,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-21 14:17:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:17:13,157 INFO L225 Difference]: With dead ends: 1991 [2020-08-21 14:17:13,157 INFO L226 Difference]: Without dead ends: 1532 [2020-08-21 14:17:13,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-21 14:17:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-21 14:17:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-21 14:17:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 14:17:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-21 14:17:13,332 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-21 14:17:13,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:17:13,332 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-21 14:17:13,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 14:17:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-21 14:17:13,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 14:17:13,336 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:17:13,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:17:13,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 14:17:13,337 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:17:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:17:13,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-21 14:17:13,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:17:13,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751067377] [2020-08-21 14:17:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:17:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,627 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 14:17:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:17:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:17:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:17:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 14:17:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:17:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 14:17:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:17:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 14:17:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 14:17:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:17:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 14:17:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 14:17:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 14:17:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 14:17:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 14:17:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 14:17:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 14:17:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:17:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:17:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 14:17:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 14:17:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:13,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 14:17:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:17:14,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751067377] [2020-08-21 14:17:14,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:17:14,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 14:17:14,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545871338] [2020-08-21 14:17:14,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 14:17:14,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:17:14,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 14:17:14,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:17:14,079 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-21 14:17:14,403 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 14:17:14,533 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:17:14,709 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:17:22,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:17:22,669 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-21 14:17:22,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 14:17:22,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-21 14:17:22,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:17:22,681 INFO L225 Difference]: With dead ends: 2455 [2020-08-21 14:17:22,681 INFO L226 Difference]: Without dead ends: 1521 [2020-08-21 14:17:22,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-21 14:17:22,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-21 14:17:22,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-21 14:17:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 14:17:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-21 14:17:22,826 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-21 14:17:22,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:17:22,826 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-21 14:17:22,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 14:17:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-21 14:17:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 14:17:22,829 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:17:22,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:17:22,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 14:17:22,830 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:17:22,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:17:22,831 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-21 14:17:22,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:17:22,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326389923] [2020-08-21 14:17:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:17:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,212 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 14:17:23,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:17:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:17:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:17:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 14:17:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:17:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 14:17:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:17:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 14:17:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 14:17:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:17:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 14:17:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 14:17:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 14:17:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 14:17:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 14:17:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 14:17:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 14:17:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:17:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:17:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 14:17:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 14:17:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 14:17:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:23,741 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 14:17:23,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326389923] [2020-08-21 14:17:23,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:17:23,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 14:17:23,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146535179] [2020-08-21 14:17:23,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 14:17:23,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:17:23,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 14:17:23,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:17:23,746 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-21 14:17:23,990 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 14:17:24,312 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:17:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:17:30,355 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-21 14:17:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 14:17:30,356 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-21 14:17:30,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:17:30,365 INFO L225 Difference]: With dead ends: 2451 [2020-08-21 14:17:30,365 INFO L226 Difference]: Without dead ends: 1517 [2020-08-21 14:17:30,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-21 14:17:30,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-21 14:17:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-21 14:17:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-21 14:17:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-21 14:17:30,528 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-21 14:17:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:17:30,528 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-21 14:17:30,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 14:17:30,528 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-21 14:17:30,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-21 14:17:30,532 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:17:30,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:17:30,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 14:17:30,533 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:17:30,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:17:30,533 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-21 14:17:30,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:17:30,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102310165] [2020-08-21 14:17:30,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:17:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:30,862 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-21 14:17:30,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:17:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:30,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:17:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:30,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:17:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:30,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 14:17:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:17:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 14:17:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:17:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 14:17:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 14:17:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:17:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 14:17:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 14:17:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 14:17:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 14:17:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 14:17:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 14:17:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 14:17:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:17:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:17:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 14:17:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-21 14:17:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 14:17:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:17:31,318 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 14:17:31,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102310165] [2020-08-21 14:17:31,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:17:31,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 14:17:31,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750469212] [2020-08-21 14:17:31,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 14:17:31,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:17:31,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 14:17:31,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:17:31,321 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-21 14:17:31,648 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-21 14:17:31,777 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-21 14:17:31,956 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 126