/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:53:00,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:53:00,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:53:00,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:53:00,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:53:00,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:53:00,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:53:00,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:53:00,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:53:00,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:53:00,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:53:00,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:53:00,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:53:00,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:53:00,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:53:00,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:53:00,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:53:00,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:53:00,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:53:00,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:53:00,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:53:00,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:53:00,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:53:00,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:53:00,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 19:53:00,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 19:53:00,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 19:53:00,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 19:53:00,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 19:53:00,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 19:53:00,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:53:00,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:53:00,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:53:00,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:53:00,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:53:00,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:53:00,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:53:00,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:53:00,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:53:00,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:53:00,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:53:00,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:53:00,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:53:00,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:53:00,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:53:00,749 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:53:00,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:53:00,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:53:00,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:53:00,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:53:00,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:53:00,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:53:00,751 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:53:00,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:53:00,751 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:53:00,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:53:00,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:53:00,752 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:53:00,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:53:00,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:53:00,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:53:00,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:53:00,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:53:00,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:53:00,753 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:53:01,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:53:01,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:53:01,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:53:01,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:53:01,077 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:53:01,078 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-22 19:53:01,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d029c50/fd7c7ed1771843e5b5563e8974037914/FLAG8136943d4 [2020-08-22 19:53:01,691 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:53:01,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-22 19:53:01,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d029c50/fd7c7ed1771843e5b5563e8974037914/FLAG8136943d4 [2020-08-22 19:53:02,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d029c50/fd7c7ed1771843e5b5563e8974037914 [2020-08-22 19:53:02,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:53:02,033 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:53:02,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:53:02,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:53:02,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:53:02,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5955ed45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02, skipping insertion in model container [2020-08-22 19:53:02,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:53:02,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:53:02,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:53:02,520 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:53:02,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:53:02,734 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:53:02,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02 WrapperNode [2020-08-22 19:53:02,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:53:02,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:53:02,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:53:02,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:53:02,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... [2020-08-22 19:53:02,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:53:02,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:53:02,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:53:02,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:53:02,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 19:53:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:53:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:53:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-22 19:53:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-22 19:53:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-22 19:53:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-22 19:53:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-22 19:53:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-22 19:53:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-22 19:53:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-22 19:53:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-22 19:53:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-22 19:53:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-22 19:53:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-22 19:53:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-22 19:53:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-22 19:53:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-22 19:53:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-08-22 19:53:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-22 19:53:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-22 19:53:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-22 19:53:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-22 19:53:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-22 19:53:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-22 19:53:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-22 19:53:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-22 19:53:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-22 19:53:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-22 19:53:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-22 19:53:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-22 19:53:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-22 19:53:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-22 19:53:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-08-22 19:53:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-22 19:53:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-22 19:53:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-22 19:53:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-22 19:53:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-22 19:53:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-22 19:53:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-22 19:53:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-22 19:53:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-22 19:53:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-22 19:53:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-22 19:53:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-22 19:53:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-22 19:53:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:53:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:53:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:53:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-22 19:53:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-22 19:53:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-22 19:53:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-22 19:53:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-22 19:53:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-22 19:53:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-22 19:53:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-22 19:53:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-22 19:53:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-22 19:53:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-22 19:53:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-22 19:53:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-22 19:53:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-22 19:53:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-22 19:53:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-08-22 19:53:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-22 19:53:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-22 19:53:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-22 19:53:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-22 19:53:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-22 19:53:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-22 19:53:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-22 19:53:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-22 19:53:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-22 19:53:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-22 19:53:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-22 19:53:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-22 19:53:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-22 19:53:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-22 19:53:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-22 19:53:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-08-22 19:53:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-22 19:53:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-22 19:53:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-22 19:53:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-22 19:53:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-22 19:53:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-22 19:53:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-22 19:53:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-22 19:53:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-22 19:53:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-22 19:53:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-22 19:53:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-22 19:53:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:53:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:53:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:53:04,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:53:04,434 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-08-22 19:53:04,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:53:04 BoogieIcfgContainer [2020-08-22 19:53:04,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:53:04,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:53:04,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:53:04,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:53:04,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:53:02" (1/3) ... [2020-08-22 19:53:04,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7464974b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:53:04, skipping insertion in model container [2020-08-22 19:53:04,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:02" (2/3) ... [2020-08-22 19:53:04,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7464974b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:53:04, skipping insertion in model container [2020-08-22 19:53:04,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:53:04" (3/3) ... [2020-08-22 19:53:04,454 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-08-22 19:53:04,465 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:53:04,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:53:04,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:53:04,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:53:04,517 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:53:04,517 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:53:04,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:53:04,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:53:04,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:53:04,519 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:53:04,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:53:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states. [2020-08-22 19:53:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:53:04,619 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:04,622 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] [2020-08-22 19:53:04,623 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:04,633 INFO L82 PathProgramCache]: Analyzing trace with hash -2106220204, now seen corresponding path program 1 times [2020-08-22 19:53:04,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:04,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870780988] [2020-08-22 19:53:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:04,730 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:05,699 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:53:05,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:05,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:53:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:53:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:05,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:53:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,069 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-08-22 19:53:06,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:53:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:53:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:53:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:53:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:53:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:53:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:53:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:53:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:53:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:53:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:53:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:53:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:53:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:53:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:53:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:53:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:53:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:53:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:53:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:06,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870780988] [2020-08-22 19:53:06,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:06,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:53:06,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113170135] [2020-08-22 19:53:06,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:53:06,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:06,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:53:06,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:53:06,570 INFO L87 Difference]: Start difference. First operand 926 states. Second operand 8 states. [2020-08-22 19:53:06,800 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:53:07,013 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:53:07,665 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:53:07,814 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:53:08,213 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:53:08,452 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:53:13,607 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:53:18,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:53:18,659 INFO L93 Difference]: Finished difference Result 2394 states and 3287 transitions. [2020-08-22 19:53:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:53:18,661 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:53:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:53:18,693 INFO L225 Difference]: With dead ends: 2394 [2020-08-22 19:53:18,693 INFO L226 Difference]: Without dead ends: 1560 [2020-08-22 19:53:18,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:53:18,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-08-22 19:53:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 915. [2020-08-22 19:53:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-08-22 19:53:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1158 transitions. [2020-08-22 19:53:19,280 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1158 transitions. Word has length 410 [2020-08-22 19:53:19,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:53:19,281 INFO L479 AbstractCegarLoop]: Abstraction has 915 states and 1158 transitions. [2020-08-22 19:53:19,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:53:19,281 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1158 transitions. [2020-08-22 19:53:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:53:19,291 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:19,291 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] [2020-08-22 19:53:19,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:53:19,292 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:19,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1066186508, now seen corresponding path program 1 times [2020-08-22 19:53:19,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:19,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388253368] [2020-08-22 19:53:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:19,296 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:19,704 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:53:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:19,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:53:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:19,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:53:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:53:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:53:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:53:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:53:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:53:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:53:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:53:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:53:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:53:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:53:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:53:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:53:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:53:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:53:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:53:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:53:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:53:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:53:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:53:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:53:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:20,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:20,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388253368] [2020-08-22 19:53:20,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:20,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:53:20,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477480052] [2020-08-22 19:53:20,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:53:20,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:20,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:53:20,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:53:20,451 INFO L87 Difference]: Start difference. First operand 915 states and 1158 transitions. Second operand 8 states. [2020-08-22 19:53:20,648 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:53:20,846 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:53:21,469 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:53:21,628 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 19:53:21,776 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:53:22,164 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:53:22,357 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:53:27,096 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:53:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:53:31,676 INFO L93 Difference]: Finished difference Result 2363 states and 3085 transitions. [2020-08-22 19:53:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:53:31,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:53:31,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:53:31,689 INFO L225 Difference]: With dead ends: 2363 [2020-08-22 19:53:31,689 INFO L226 Difference]: Without dead ends: 1559 [2020-08-22 19:53:31,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:53:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-08-22 19:53:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 914. [2020-08-22 19:53:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2020-08-22 19:53:32,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1156 transitions. [2020-08-22 19:53:32,020 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1156 transitions. Word has length 410 [2020-08-22 19:53:32,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:53:32,021 INFO L479 AbstractCegarLoop]: Abstraction has 914 states and 1156 transitions. [2020-08-22 19:53:32,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:53:32,021 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1156 transitions. [2020-08-22 19:53:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:53:32,030 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:32,031 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] [2020-08-22 19:53:32,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:53:32,031 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:32,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:32,032 INFO L82 PathProgramCache]: Analyzing trace with hash -642400108, now seen corresponding path program 1 times [2020-08-22 19:53:32,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:32,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493002710] [2020-08-22 19:53:32,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:32,035 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,452 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:53:32,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:53:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:53:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:53:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:53:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:53:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:53:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:53:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:53:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:53:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:53:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:53:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:53:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:53:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:53:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:53:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:53:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:53:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:53:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:53:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:53:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:53:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:32,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:53:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:33,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493002710] [2020-08-22 19:53:33,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:33,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:53:33,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984505823] [2020-08-22 19:53:33,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:53:33,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:33,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:53:33,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:53:33,377 INFO L87 Difference]: Start difference. First operand 914 states and 1156 transitions. Second operand 8 states. [2020-08-22 19:53:33,645 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:53:33,831 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:53:34,484 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:53:34,623 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 19:53:34,773 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:53:35,112 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:53:35,280 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:53:39,934 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:53:45,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:53:45,420 INFO L93 Difference]: Finished difference Result 2356 states and 3075 transitions. [2020-08-22 19:53:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:53:45,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:53:45,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:53:45,439 INFO L225 Difference]: With dead ends: 2356 [2020-08-22 19:53:45,439 INFO L226 Difference]: Without dead ends: 1558 [2020-08-22 19:53:45,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:53:45,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-08-22 19:53:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 913. [2020-08-22 19:53:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-08-22 19:53:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1154 transitions. [2020-08-22 19:53:46,258 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1154 transitions. Word has length 410 [2020-08-22 19:53:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:53:46,260 INFO L479 AbstractCegarLoop]: Abstraction has 913 states and 1154 transitions. [2020-08-22 19:53:46,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:53:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1154 transitions. [2020-08-22 19:53:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:53:46,278 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:46,279 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] [2020-08-22 19:53:46,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:53:46,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:46,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:46,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1361381428, now seen corresponding path program 1 times [2020-08-22 19:53:46,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:46,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5289597] [2020-08-22 19:53:46,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:46,286 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:46,989 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:53:46,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:53:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:53:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:53:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:53:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:53:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:53:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:53:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:53:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:53:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:53:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:53:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:53:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:53:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:53:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:53:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:53:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:53:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:53:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:53:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:53:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:53:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:53:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:47,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5289597] [2020-08-22 19:53:47,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:47,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:53:47,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838209331] [2020-08-22 19:53:47,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:53:47,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:47,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:53:47,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:53:47,764 INFO L87 Difference]: Start difference. First operand 913 states and 1154 transitions. Second operand 8 states. [2020-08-22 19:53:48,051 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:53:48,312 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:53:48,955 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:53:49,091 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 19:53:49,254 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:53:49,658 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:53:49,900 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:53:54,504 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:53:59,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:53:59,311 INFO L93 Difference]: Finished difference Result 2349 states and 3065 transitions. [2020-08-22 19:53:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:53:59,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:53:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:53:59,326 INFO L225 Difference]: With dead ends: 2349 [2020-08-22 19:53:59,326 INFO L226 Difference]: Without dead ends: 1557 [2020-08-22 19:53:59,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:53:59,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-08-22 19:53:59,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 912. [2020-08-22 19:53:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-08-22 19:53:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1152 transitions. [2020-08-22 19:53:59,711 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1152 transitions. Word has length 410 [2020-08-22 19:53:59,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:53:59,712 INFO L479 AbstractCegarLoop]: Abstraction has 912 states and 1152 transitions. [2020-08-22 19:53:59,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:53:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1152 transitions. [2020-08-22 19:53:59,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:53:59,720 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:59,721 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] [2020-08-22 19:53:59,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:53:59,721 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:59,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:59,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1571364820, now seen corresponding path program 1 times [2020-08-22 19:53:59,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:59,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651861359] [2020-08-22 19:53:59,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:59,725 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,080 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:54:00,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:54:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:54:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:54:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:54:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:54:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:54:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:54:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:54:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:54:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:54:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:54:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:54:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:54:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:54:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:54:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:54:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:54:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:54:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:54:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:54:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:54:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:54:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:00,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:00,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651861359] [2020-08-22 19:54:00,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:00,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:54:00,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126318147] [2020-08-22 19:54:00,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:54:00,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:00,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:54:00,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:54:00,581 INFO L87 Difference]: Start difference. First operand 912 states and 1152 transitions. Second operand 8 states. [2020-08-22 19:54:00,775 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:54:00,954 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:54:01,516 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:54:01,650 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 19:54:01,812 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:54:02,146 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:54:02,319 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:54:06,923 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:54:11,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:11,731 INFO L93 Difference]: Finished difference Result 2342 states and 3055 transitions. [2020-08-22 19:54:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:54:11,731 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:54:11,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:11,742 INFO L225 Difference]: With dead ends: 2342 [2020-08-22 19:54:11,742 INFO L226 Difference]: Without dead ends: 1556 [2020-08-22 19:54:11,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:54:11,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2020-08-22 19:54:12,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 911. [2020-08-22 19:54:12,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-08-22 19:54:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1150 transitions. [2020-08-22 19:54:12,194 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1150 transitions. Word has length 410 [2020-08-22 19:54:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:12,195 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1150 transitions. [2020-08-22 19:54:12,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:54:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1150 transitions. [2020-08-22 19:54:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:54:12,198 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:12,198 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] [2020-08-22 19:54:12,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:54:12,199 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:12,199 INFO L82 PathProgramCache]: Analyzing trace with hash -366344332, now seen corresponding path program 1 times [2020-08-22 19:54:12,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:12,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925363815] [2020-08-22 19:54:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:12,201 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,599 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:54:12,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:54:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:54:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:54:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:54:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:54:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:54:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:54:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:54:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:54:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:54:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:54:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:54:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:54:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:54:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:54:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:54:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:54:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:54:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:54:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:54:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:13,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:54:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:13,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:54:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:13,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925363815] [2020-08-22 19:54:13,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:13,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:54:13,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367191684] [2020-08-22 19:54:13,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:54:13,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:13,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:54:13,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:54:13,119 INFO L87 Difference]: Start difference. First operand 911 states and 1150 transitions. Second operand 8 states. [2020-08-22 19:54:13,304 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:54:13,477 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:54:14,058 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:54:14,189 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 19:54:14,359 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:54:14,664 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:54:14,845 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:54:19,351 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:54:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:24,105 INFO L93 Difference]: Finished difference Result 2335 states and 3045 transitions. [2020-08-22 19:54:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:54:24,105 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:54:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:24,115 INFO L225 Difference]: With dead ends: 2335 [2020-08-22 19:54:24,115 INFO L226 Difference]: Without dead ends: 1555 [2020-08-22 19:54:24,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:54:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2020-08-22 19:54:24,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 910. [2020-08-22 19:54:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2020-08-22 19:54:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1148 transitions. [2020-08-22 19:54:24,496 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1148 transitions. Word has length 410 [2020-08-22 19:54:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:24,496 INFO L479 AbstractCegarLoop]: Abstraction has 910 states and 1148 transitions. [2020-08-22 19:54:24,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:54:24,496 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1148 transitions. [2020-08-22 19:54:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:54:24,499 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:24,500 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] [2020-08-22 19:54:24,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 19:54:24,500 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:24,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1785741548, now seen corresponding path program 1 times [2020-08-22 19:54:24,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:24,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795449949] [2020-08-22 19:54:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:24,506 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:24,838 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:54:24,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:24,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:54:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:24,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:54:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:54:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:54:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:54:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:54:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:54:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:54:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:54:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:54:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:54:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:54:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:54:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:54:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:54:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:54:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:54:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:54:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:54:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:54:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:54:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:54:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:25,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:25,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795449949] [2020-08-22 19:54:25,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:25,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:54:25,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556158561] [2020-08-22 19:54:25,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:54:25,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:25,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:54:25,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:54:25,226 INFO L87 Difference]: Start difference. First operand 910 states and 1148 transitions. Second operand 8 states. [2020-08-22 19:54:25,413 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:54:25,592 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:54:26,165 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:54:26,302 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 19:54:26,486 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:54:26,800 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:54:26,977 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:54:31,470 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:54:36,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:36,249 INFO L93 Difference]: Finished difference Result 2328 states and 3035 transitions. [2020-08-22 19:54:36,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:54:36,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:54:36,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:36,258 INFO L225 Difference]: With dead ends: 2328 [2020-08-22 19:54:36,259 INFO L226 Difference]: Without dead ends: 1554 [2020-08-22 19:54:36,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:54:36,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2020-08-22 19:54:36,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 909. [2020-08-22 19:54:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-08-22 19:54:36,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1146 transitions. [2020-08-22 19:54:36,661 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1146 transitions. Word has length 410 [2020-08-22 19:54:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:36,662 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1146 transitions. [2020-08-22 19:54:36,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:54:36,662 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1146 transitions. [2020-08-22 19:54:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:54:36,666 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:36,666 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] [2020-08-22 19:54:36,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 19:54:36,667 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:36,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1295890764, now seen corresponding path program 1 times [2020-08-22 19:54:36,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:36,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585153409] [2020-08-22 19:54:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:36,669 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:36,977 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:54:36,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:54:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:54:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:54:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:54:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:54:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:54:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:54:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:54:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:54:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:54:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:54:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:54:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:54:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:54:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:54:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:54:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:54:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:54:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:54:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:54:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:54:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:54:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:37,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585153409] [2020-08-22 19:54:37,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:37,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:54:37,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86375334] [2020-08-22 19:54:37,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:54:37,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:37,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:54:37,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:54:37,416 INFO L87 Difference]: Start difference. First operand 909 states and 1146 transitions. Second operand 8 states. [2020-08-22 19:54:37,598 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:54:37,773 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:54:38,368 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 19:54:38,529 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 19:54:38,754 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:54:39,061 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:54:39,251 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:54:43,725 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:54:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:48,514 INFO L93 Difference]: Finished difference Result 2321 states and 3025 transitions. [2020-08-22 19:54:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:54:48,515 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-08-22 19:54:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:48,522 INFO L225 Difference]: With dead ends: 2321 [2020-08-22 19:54:48,523 INFO L226 Difference]: Without dead ends: 1553 [2020-08-22 19:54:48,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:54:48,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2020-08-22 19:54:49,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 908. [2020-08-22 19:54:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-08-22 19:54:49,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1144 transitions. [2020-08-22 19:54:49,042 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1144 transitions. Word has length 410 [2020-08-22 19:54:49,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:49,042 INFO L479 AbstractCegarLoop]: Abstraction has 908 states and 1144 transitions. [2020-08-22 19:54:49,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:54:49,042 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1144 transitions. [2020-08-22 19:54:49,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-08-22 19:54:49,045 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:49,046 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] [2020-08-22 19:54:49,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 19:54:49,046 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:49,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:49,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1219075668, now seen corresponding path program 1 times [2020-08-22 19:54:49,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:49,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809453781] [2020-08-22 19:54:49,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:49,049 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,486 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 19:54:49,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 19:54:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:54:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 19:54:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 19:54:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-22 19:54:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 19:54:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:54:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:54:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 19:54:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 19:54:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 19:54:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:54:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 19:54:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 19:54:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 19:54:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 19:54:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:54:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 19:54:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 19:54:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 19:54:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-08-22 19:54:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-08-22 19:54:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:49,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809453781] [2020-08-22 19:54:49,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:49,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:54:49,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114706828] [2020-08-22 19:54:49,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:54:49,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:54:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:54:49,837 INFO L87 Difference]: Start difference. First operand 908 states and 1144 transitions. Second operand 7 states. [2020-08-22 19:54:50,021 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-08-22 19:54:50,202 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 19:54:50,777 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 19:54:50,910 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 19:54:54,213 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-22 19:54:54,773 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-08-22 19:55:07,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:55:07,173 INFO L93 Difference]: Finished difference Result 3648 states and 4851 transitions. [2020-08-22 19:55:07,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 19:55:07,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 410 [2020-08-22 19:55:07,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:55:07,194 INFO L225 Difference]: With dead ends: 3648 [2020-08-22 19:55:07,195 INFO L226 Difference]: Without dead ends: 2886 [2020-08-22 19:55:07,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-08-22 19:55:07,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-08-22 19:55:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1841. [2020-08-22 19:55:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1841 states. [2020-08-22 19:55:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2390 transitions. [2020-08-22 19:55:08,563 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2390 transitions. Word has length 410 [2020-08-22 19:55:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:55:08,564 INFO L479 AbstractCegarLoop]: Abstraction has 1841 states and 2390 transitions. [2020-08-22 19:55:08,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:55:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2390 transitions. [2020-08-22 19:55:08,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-08-22 19:55:08,569 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:55:08,569 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, 1, 1, 1, 1, 1] [2020-08-22 19:55:08,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 19:55:08,570 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:55:08,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:55:08,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1492346934, now seen corresponding path program 1 times [2020-08-22 19:55:08,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:55:08,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226804137] [2020-08-22 19:55:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:55:08,573 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:55:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:55:08,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:55:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:55:08,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:55:09,110 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:55:09,110 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:55:09,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 19:55:09,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:55:09 BoogieIcfgContainer [2020-08-22 19:55:09,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:55:09,157 INFO L168 Benchmark]: Toolchain (without parser) took 127124.43 ms. Allocated memory was 139.5 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 102.4 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 225.3 MB. Max. memory is 7.1 GB. [2020-08-22 19:55:09,158 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:55:09,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.76 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 171.6 MB in the end (delta: -69.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:55:09,160 INFO L168 Benchmark]: Boogie Preprocessor took 130.39 ms. Allocated memory is still 203.4 MB. Free memory was 171.6 MB in the beginning and 166.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:55:09,160 INFO L168 Benchmark]: RCFGBuilder took 1575.45 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 166.7 MB in the beginning and 145.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:55:09,161 INFO L168 Benchmark]: TraceAbstraction took 124708.60 ms. Allocated memory was 237.5 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 145.7 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 170.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:55:09,164 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.76 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 171.6 MB in the end (delta: -69.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.39 ms. Allocated memory is still 203.4 MB. Free memory was 171.6 MB in the beginning and 166.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1575.45 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 166.7 MB in the beginning and 145.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 124708.60 ms. Allocated memory was 237.5 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 145.7 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 170.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int t2_pc = 0; [L18] int t3_pc = 0; [L19] int t4_pc = 0; [L20] int t5_pc = 0; [L21] int t6_pc = 0; [L22] int t7_pc = 0; [L23] int t8_pc = 0; [L24] int t9_pc = 0; [L25] int t10_pc = 0; [L26] int t11_pc = 0; [L27] int t12_pc = 0; [L28] int t13_pc = 0; [L29] int t14_pc = 0; [L30] int m_st ; [L31] int t1_st ; [L32] int t2_st ; [L33] int t3_st ; [L34] int t4_st ; [L35] int t5_st ; [L36] int t6_st ; [L37] int t7_st ; [L38] int t8_st ; [L39] int t9_st ; [L40] int t10_st ; [L41] int t11_st ; [L42] int t12_st ; [L43] int t13_st ; [L44] int t14_st ; [L45] int m_i ; [L46] int t1_i ; [L47] int t2_i ; [L48] int t3_i ; [L49] int t4_i ; [L50] int t5_i ; [L51] int t6_i ; [L52] int t7_i ; [L53] int t8_i ; [L54] int t9_i ; [L55] int t10_i ; [L56] int t11_i ; [L57] int t12_i ; [L58] int t13_i ; [L59] int t14_i ; [L60] int M_E = 2; [L61] int T1_E = 2; [L62] int T2_E = 2; [L63] int T3_E = 2; [L64] int T4_E = 2; [L65] int T5_E = 2; [L66] int T6_E = 2; [L67] int T7_E = 2; [L68] int T8_E = 2; [L69] int T9_E = 2; [L70] int T10_E = 2; [L71] int T11_E = 2; [L72] int T12_E = 2; [L73] int T13_E = 2; [L74] int T14_E = 2; [L75] int E_1 = 2; [L76] int E_2 = 2; [L77] int E_3 = 2; [L78] int E_4 = 2; [L79] int E_5 = 2; [L80] int E_6 = 2; [L81] int E_7 = 2; [L82] int E_8 = 2; [L83] int E_9 = 2; [L84] int E_10 = 2; [L85] int E_11 = 2; [L86] int E_12 = 2; [L87] int E_13 = 2; [L88] int E_14 = 2; [L2052] int __retres1 ; [L2056] CALL init_model() [L1954] m_i = 1 [L1955] t1_i = 1 [L1956] t2_i = 1 [L1957] t3_i = 1 [L1958] t4_i = 1 [L1959] t5_i = 1 [L1960] t6_i = 1 [L1961] t7_i = 1 [L1962] t8_i = 1 [L1963] t9_i = 1 [L1964] t10_i = 1 [L1965] t11_i = 1 [L1966] t12_i = 1 [L1967] t13_i = 1 [L1968] t14_i = 1 [L2056] RET init_model() [L2057] CALL start_simulation() [L1993] int kernel_st ; [L1994] int tmp ; [L1995] int tmp___0 ; [L1999] kernel_st = 0 [L2000] FCALL update_channels() [L2001] CALL init_threads() [L929] COND TRUE m_i == 1 [L930] m_st = 0 [L934] COND TRUE t1_i == 1 [L935] t1_st = 0 [L939] COND TRUE t2_i == 1 [L940] t2_st = 0 [L944] COND TRUE t3_i == 1 [L945] t3_st = 0 [L949] COND TRUE t4_i == 1 [L950] t4_st = 0 [L954] COND TRUE t5_i == 1 [L955] t5_st = 0 [L959] COND TRUE t6_i == 1 [L960] t6_st = 0 [L964] COND TRUE t7_i == 1 [L965] t7_st = 0 [L969] COND TRUE t8_i == 1 [L970] t8_st = 0 [L974] COND TRUE t9_i == 1 [L975] t9_st = 0 [L979] COND TRUE t10_i == 1 [L980] t10_st = 0 [L984] COND TRUE t11_i == 1 [L985] t11_st = 0 [L989] COND TRUE t12_i == 1 [L990] t12_st = 0 [L994] COND TRUE t13_i == 1 [L995] t13_st = 0 [L999] COND TRUE t14_i == 1 [L1000] t14_st = 0 [L2001] RET init_threads() [L2002] CALL fire_delta_events() [L1332] COND FALSE !(M_E == 0) [L1337] COND FALSE !(T1_E == 0) [L1342] COND FALSE !(T2_E == 0) [L1347] COND FALSE !(T3_E == 0) [L1352] COND FALSE !(T4_E == 0) [L1357] COND FALSE !(T5_E == 0) [L1362] COND FALSE !(T6_E == 0) [L1367] COND FALSE !(T7_E == 0) [L1372] COND FALSE !(T8_E == 0) [L1377] COND FALSE !(T9_E == 0) [L1382] COND FALSE !(T10_E == 0) [L1387] COND FALSE !(T11_E == 0) [L1392] COND FALSE !(T12_E == 0) [L1397] COND FALSE !(T13_E == 0) [L1402] COND FALSE !(T14_E == 0) [L1407] COND FALSE !(E_1 == 0) [L1412] COND FALSE !(E_2 == 0) [L1417] COND FALSE !(E_3 == 0) [L1422] COND FALSE !(E_4 == 0) [L1427] COND FALSE !(E_5 == 0) [L1432] COND FALSE !(E_6 == 0) [L1437] COND FALSE !(E_7 == 0) [L1442] COND FALSE !(E_8 == 0) [L1447] COND FALSE !(E_9 == 0) [L1452] COND FALSE !(E_10 == 0) [L1457] COND FALSE !(E_11 == 0) [L1462] COND FALSE !(E_12 == 0) [L1467] COND FALSE !(E_13 == 0) [L1472] COND FALSE !(E_14 == 0) [L2002] RET fire_delta_events() [L2003] CALL activate_threads() [L1635] int tmp ; [L1636] int tmp___0 ; [L1637] int tmp___1 ; [L1638] int tmp___2 ; [L1639] int tmp___3 ; [L1640] int tmp___4 ; [L1641] int tmp___5 ; [L1642] int tmp___6 ; [L1643] int tmp___7 ; [L1644] int tmp___8 ; [L1645] int tmp___9 ; [L1646] int tmp___10 ; [L1647] int tmp___11 ; [L1648] int tmp___12 ; [L1649] int tmp___13 ; [L1654] CALL, EXPR is_master_triggered() [L633] int __retres1 ; [L636] COND FALSE !(m_pc == 1) [L646] __retres1 = 0 [L648] return (__retres1); [L1654] RET, EXPR is_master_triggered() [L1654] tmp = is_master_triggered() [L1656] COND FALSE !(\read(tmp)) [L1662] CALL, EXPR is_transmit1_triggered() [L652] int __retres1 ; [L655] COND FALSE !(t1_pc == 1) [L665] __retres1 = 0 [L667] return (__retres1); [L1662] RET, EXPR is_transmit1_triggered() [L1662] tmp___0 = is_transmit1_triggered() [L1664] COND FALSE !(\read(tmp___0)) [L1670] CALL, EXPR is_transmit2_triggered() [L671] int __retres1 ; [L674] COND FALSE !(t2_pc == 1) [L684] __retres1 = 0 [L686] return (__retres1); [L1670] RET, EXPR is_transmit2_triggered() [L1670] tmp___1 = is_transmit2_triggered() [L1672] COND FALSE !(\read(tmp___1)) [L1678] CALL, EXPR is_transmit3_triggered() [L690] int __retres1 ; [L693] COND FALSE !(t3_pc == 1) [L703] __retres1 = 0 [L705] return (__retres1); [L1678] RET, EXPR is_transmit3_triggered() [L1678] tmp___2 = is_transmit3_triggered() [L1680] COND FALSE !(\read(tmp___2)) [L1686] CALL, EXPR is_transmit4_triggered() [L709] int __retres1 ; [L712] COND FALSE !(t4_pc == 1) [L722] __retres1 = 0 [L724] return (__retres1); [L1686] RET, EXPR is_transmit4_triggered() [L1686] tmp___3 = is_transmit4_triggered() [L1688] COND FALSE !(\read(tmp___3)) [L1694] CALL, EXPR is_transmit5_triggered() [L728] int __retres1 ; [L731] COND FALSE !(t5_pc == 1) [L741] __retres1 = 0 [L743] return (__retres1); [L1694] RET, EXPR is_transmit5_triggered() [L1694] tmp___4 = is_transmit5_triggered() [L1696] COND FALSE !(\read(tmp___4)) [L1702] CALL, EXPR is_transmit6_triggered() [L747] int __retres1 ; [L750] COND FALSE !(t6_pc == 1) [L760] __retres1 = 0 [L762] return (__retres1); [L1702] RET, EXPR is_transmit6_triggered() [L1702] tmp___5 = is_transmit6_triggered() [L1704] COND FALSE !(\read(tmp___5)) [L1710] CALL, EXPR is_transmit7_triggered() [L766] int __retres1 ; [L769] COND FALSE !(t7_pc == 1) [L779] __retres1 = 0 [L781] return (__retres1); [L1710] RET, EXPR is_transmit7_triggered() [L1710] tmp___6 = is_transmit7_triggered() [L1712] COND FALSE !(\read(tmp___6)) [L1718] CALL, EXPR is_transmit8_triggered() [L785] int __retres1 ; [L788] COND FALSE !(t8_pc == 1) [L798] __retres1 = 0 [L800] return (__retres1); [L1718] RET, EXPR is_transmit8_triggered() [L1718] tmp___7 = is_transmit8_triggered() [L1720] COND FALSE !(\read(tmp___7)) [L1726] CALL, EXPR is_transmit9_triggered() [L804] int __retres1 ; [L807] COND FALSE !(t9_pc == 1) [L817] __retres1 = 0 [L819] return (__retres1); [L1726] RET, EXPR is_transmit9_triggered() [L1726] tmp___8 = is_transmit9_triggered() [L1728] COND FALSE !(\read(tmp___8)) [L1734] CALL, EXPR is_transmit10_triggered() [L823] int __retres1 ; [L826] COND FALSE !(t10_pc == 1) [L836] __retres1 = 0 [L838] return (__retres1); [L1734] RET, EXPR is_transmit10_triggered() [L1734] tmp___9 = is_transmit10_triggered() [L1736] COND FALSE !(\read(tmp___9)) [L1742] CALL, EXPR is_transmit11_triggered() [L842] int __retres1 ; [L845] COND FALSE !(t11_pc == 1) [L855] __retres1 = 0 [L857] return (__retres1); [L1742] RET, EXPR is_transmit11_triggered() [L1742] tmp___10 = is_transmit11_triggered() [L1744] COND FALSE !(\read(tmp___10)) [L1750] CALL, EXPR is_transmit12_triggered() [L861] int __retres1 ; [L864] COND FALSE !(t12_pc == 1) [L874] __retres1 = 0 [L876] return (__retres1); [L1750] RET, EXPR is_transmit12_triggered() [L1750] tmp___11 = is_transmit12_triggered() [L1752] COND FALSE !(\read(tmp___11)) [L1758] CALL, EXPR is_transmit13_triggered() [L880] int __retres1 ; [L883] COND FALSE !(t13_pc == 1) [L893] __retres1 = 0 [L895] return (__retres1); [L1758] RET, EXPR is_transmit13_triggered() [L1758] tmp___12 = is_transmit13_triggered() [L1760] COND FALSE !(\read(tmp___12)) [L1766] CALL, EXPR is_transmit14_triggered() [L899] int __retres1 ; [L902] COND FALSE !(t14_pc == 1) [L912] __retres1 = 0 [L914] return (__retres1); [L1766] RET, EXPR is_transmit14_triggered() [L1766] tmp___13 = is_transmit14_triggered() [L1768] COND FALSE !(\read(tmp___13)) [L2003] RET activate_threads() [L2004] CALL reset_delta_events() [L1485] COND FALSE !(M_E == 1) [L1490] COND FALSE !(T1_E == 1) [L1495] COND FALSE !(T2_E == 1) [L1500] COND FALSE !(T3_E == 1) [L1505] COND FALSE !(T4_E == 1) [L1510] COND FALSE !(T5_E == 1) [L1515] COND FALSE !(T6_E == 1) [L1520] COND FALSE !(T7_E == 1) [L1525] COND FALSE !(T8_E == 1) [L1530] COND FALSE !(T9_E == 1) [L1535] COND FALSE !(T10_E == 1) [L1540] COND FALSE !(T11_E == 1) [L1545] COND FALSE !(T12_E == 1) [L1550] COND FALSE !(T13_E == 1) [L1555] COND FALSE !(T14_E == 1) [L1560] COND FALSE !(E_1 == 1) [L1565] COND FALSE !(E_2 == 1) [L1570] COND FALSE !(E_3 == 1) [L1575] COND FALSE !(E_4 == 1) [L1580] COND FALSE !(E_5 == 1) [L1585] COND FALSE !(E_6 == 1) [L1590] COND FALSE !(E_7 == 1) [L1595] COND FALSE !(E_8 == 1) [L1600] COND FALSE !(E_9 == 1) [L1605] COND FALSE !(E_10 == 1) [L1610] COND FALSE !(E_11 == 1) [L1615] COND FALSE !(E_12 == 1) [L1620] COND FALSE !(E_13 == 1) [L1625] COND FALSE !(E_14 == 1) [L2004] RET reset_delta_events() [L2007] COND TRUE 1 [L2010] kernel_st = 1 [L2011] CALL eval() [L1096] int tmp ; [L1100] COND TRUE 1 [L1103] CALL, EXPR exists_runnable_thread() [L1009] int __retres1 ; [L1012] COND TRUE m_st == 0 [L1013] __retres1 = 1 [L1091] return (__retres1); [L1103] RET, EXPR exists_runnable_thread() [L1103] tmp = exists_runnable_thread() [L1105] COND TRUE \read(tmp) [L1110] COND TRUE m_st == 0 [L1111] int tmp_ndt_1; [L1112] tmp_ndt_1 = __VERIFIER_nondet_int() [L1113] COND FALSE !(\read(tmp_ndt_1)) [L1124] COND TRUE t1_st == 0 [L1125] int tmp_ndt_2; [L1126] tmp_ndt_2 = __VERIFIER_nondet_int() [L1127] COND FALSE !(\read(tmp_ndt_2)) [L1133] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 926 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 124.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 108.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6983 SDtfs, 40781 SDslu, 1696 SDs, 0 SdLazy, 32576 SolverSat, 5588 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 593 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 19.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1841occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 6205 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...