/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.02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 14:07:09,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 14:07:09,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 14:07:09,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 14:07:09,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 14:07:09,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 14:07:09,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 14:07:09,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 14:07:09,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 14:07:09,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 14:07:09,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 14:07:09,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 14:07:09,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 14:07:09,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 14:07:09,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 14:07:09,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 14:07:09,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 14:07:09,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 14:07:09,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 14:07:09,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 14:07:09,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 14:07:09,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 14:07:09,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 14:07:09,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 14:07:09,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 14:07:09,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 14:07:09,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 14:07:09,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 14:07:09,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 14:07:09,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 14:07:09,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 14:07:09,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 14:07:09,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 14:07:09,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 14:07:09,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 14:07:09,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 14:07:09,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 14:07:09,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 14:07:09,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 14:07:09,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 14:07:09,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 14:07:09,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 14:07:09,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 14:07:09,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 14:07:09,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 14:07:09,120 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 14:07:09,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 14:07:09,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 14:07:09,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 14:07:09,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 14:07:09,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 14:07:09,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 14:07:09,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 14:07:09,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 14:07:09,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 14:07:09,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 14:07:09,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 14:07:09,126 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 14:07:09,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 14:07:09,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 14:07:09,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:07:09,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 14:07:09,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 14:07:09,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 14:07:09,127 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 14:07:09,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 14:07:09,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 14:07:09,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 14:07:09,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 14:07:09,437 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 14:07:09,438 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-07-07 14:07:09,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d0d7132/01dbeb31e84e47a69a808631c7f5b43e/FLAG4ad8d560c [2020-07-07 14:07:09,933 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 14:07:09,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-07-07 14:07:09,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d0d7132/01dbeb31e84e47a69a808631c7f5b43e/FLAG4ad8d560c [2020-07-07 14:07:10,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d0d7132/01dbeb31e84e47a69a808631c7f5b43e [2020-07-07 14:07:10,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 14:07:10,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 14:07:10,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 14:07:10,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 14:07:10,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 14:07:10,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4635f466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10, skipping insertion in model container [2020-07-07 14:07:10,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 14:07:10,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 14:07:10,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:07:10,753 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 14:07:10,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:07:10,935 INFO L208 MainTranslator]: Completed translation [2020-07-07 14:07:10,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10 WrapperNode [2020-07-07 14:07:10,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 14:07:10,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 14:07:10,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 14:07:10,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 14:07:10,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (1/1) ... [2020-07-07 14:07:10,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 14:07:10,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 14:07:10,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 14:07:10,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 14:07:10,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (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 [2020-07-07 14:07:11,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 14:07:11,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 14:07:11,045 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-07 14:07:11,045 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-07 14:07:11,045 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-07 14:07:11,045 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-07-07 14:07:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-07 14:07:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-07 14:07:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-07-07 14:07:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-07 14:07:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-07 14:07:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-07 14:07:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-07 14:07:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-07 14:07:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-07 14:07:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-07 14:07:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-07 14:07:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-07 14:07:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-07 14:07:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-07 14:07:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-07 14:07:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-07 14:07:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 14:07:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 14:07:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 14:07:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-07 14:07:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-07 14:07:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-07 14:07:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-07-07 14:07:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-07 14:07:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-07 14:07:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-07 14:07:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-07-07 14:07:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-07 14:07:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-07 14:07:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-07 14:07:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-07 14:07:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-07 14:07:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-07 14:07:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-07 14:07:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-07 14:07:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-07 14:07:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-07 14:07:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-07 14:07:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-07 14:07:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 14:07:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 14:07:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 14:07:11,612 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 14:07:11,613 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-07 14:07:11,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:07:11 BoogieIcfgContainer [2020-07-07 14:07:11,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 14:07:11,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 14:07:11,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 14:07:11,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 14:07:11,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 02:07:10" (1/3) ... [2020-07-07 14:07:11,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb2a29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:07:11, skipping insertion in model container [2020-07-07 14:07:11,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:07:10" (2/3) ... [2020-07-07 14:07:11,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb2a29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:07:11, skipping insertion in model container [2020-07-07 14:07:11,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:07:11" (3/3) ... [2020-07-07 14:07:11,629 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.02.cil.c [2020-07-07 14:07:11,640 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 14:07:11,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 14:07:11,663 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 14:07:11,685 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 14:07:11,685 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 14:07:11,686 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 14:07:11,686 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 14:07:11,686 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 14:07:11,686 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 14:07:11,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 14:07:11,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 14:07:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states. [2020-07-07 14:07:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-07 14:07:11,728 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:11,729 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] [2020-07-07 14:07:11,730 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:11,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1383476838, now seen corresponding path program 1 times [2020-07-07 14:07:11,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:11,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991956083] [2020-07-07 14:07:11,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:12,314 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:12,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991956083] [2020-07-07 14:07:12,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:12,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 14:07:12,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639467031] [2020-07-07 14:07:12,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 14:07:12,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:12,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 14:07:12,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 14:07:12,341 INFO L87 Difference]: Start difference. First operand 257 states. Second operand 7 states. [2020-07-07 14:07:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:14,840 INFO L93 Difference]: Finished difference Result 946 states and 1320 transitions. [2020-07-07 14:07:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 14:07:14,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-07-07 14:07:14,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:14,867 INFO L225 Difference]: With dead ends: 946 [2020-07-07 14:07:14,867 INFO L226 Difference]: Without dead ends: 707 [2020-07-07 14:07:14,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-07-07 14:07:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-07-07 14:07:15,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 472. [2020-07-07 14:07:15,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-07-07 14:07:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 597 transitions. [2020-07-07 14:07:15,070 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 597 transitions. Word has length 127 [2020-07-07 14:07:15,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:15,072 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 597 transitions. [2020-07-07 14:07:15,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 14:07:15,072 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 597 transitions. [2020-07-07 14:07:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-07 14:07:15,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:15,096 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] [2020-07-07 14:07:15,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 14:07:15,097 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:15,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:15,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1691024482, now seen corresponding path program 1 times [2020-07-07 14:07:15,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:15,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520989061] [2020-07-07 14:07:15,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:15,325 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:15,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520989061] [2020-07-07 14:07:15,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:15,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 14:07:15,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960281061] [2020-07-07 14:07:15,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 14:07:15,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:15,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 14:07:15,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 14:07:15,328 INFO L87 Difference]: Start difference. First operand 472 states and 597 transitions. Second operand 8 states. [2020-07-07 14:07:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:16,939 INFO L93 Difference]: Finished difference Result 1128 states and 1479 transitions. [2020-07-07 14:07:16,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 14:07:16,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-07-07 14:07:16,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:16,957 INFO L225 Difference]: With dead ends: 1128 [2020-07-07 14:07:16,957 INFO L226 Difference]: Without dead ends: 700 [2020-07-07 14:07:16,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-07-07 14:07:16,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-07 14:07:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 460. [2020-07-07 14:07:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-07-07 14:07:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 578 transitions. [2020-07-07 14:07:17,092 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 578 transitions. Word has length 128 [2020-07-07 14:07:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:17,094 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 578 transitions. [2020-07-07 14:07:17,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 14:07:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 578 transitions. [2020-07-07 14:07:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 14:07:17,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:17,098 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] [2020-07-07 14:07:17,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 14:07:17,099 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:17,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:17,099 INFO L82 PathProgramCache]: Analyzing trace with hash -2002481605, now seen corresponding path program 1 times [2020-07-07 14:07:17,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:17,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131284693] [2020-07-07 14:07:17,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:17,306 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:17,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131284693] [2020-07-07 14:07:17,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:17,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 14:07:17,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477807488] [2020-07-07 14:07:17,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 14:07:17,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:17,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 14:07:17,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 14:07:17,308 INFO L87 Difference]: Start difference. First operand 460 states and 578 transitions. Second operand 7 states. [2020-07-07 14:07:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:19,588 INFO L93 Difference]: Finished difference Result 1752 states and 2439 transitions. [2020-07-07 14:07:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 14:07:19,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-07-07 14:07:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:19,598 INFO L225 Difference]: With dead ends: 1752 [2020-07-07 14:07:19,599 INFO L226 Difference]: Without dead ends: 1336 [2020-07-07 14:07:19,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-07-07 14:07:19,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2020-07-07 14:07:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 947. [2020-07-07 14:07:19,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 947 states. [2020-07-07 14:07:19,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1238 transitions. [2020-07-07 14:07:19,759 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1238 transitions. Word has length 132 [2020-07-07 14:07:19,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:19,760 INFO L479 AbstractCegarLoop]: Abstraction has 947 states and 1238 transitions. [2020-07-07 14:07:19,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 14:07:19,760 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1238 transitions. [2020-07-07 14:07:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-07 14:07:19,763 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:19,764 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:07:19,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 14:07:19,764 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:19,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:19,765 INFO L82 PathProgramCache]: Analyzing trace with hash 537882589, now seen corresponding path program 1 times [2020-07-07 14:07:19,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:19,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956493257] [2020-07-07 14:07:19,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:20,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:20,021 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:20,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956493257] [2020-07-07 14:07:20,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:20,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 14:07:20,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710699976] [2020-07-07 14:07:20,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 14:07:20,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:20,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 14:07:20,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-07 14:07:20,026 INFO L87 Difference]: Start difference. First operand 947 states and 1238 transitions. Second operand 8 states. [2020-07-07 14:07:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:23,030 INFO L93 Difference]: Finished difference Result 3722 states and 5501 transitions. [2020-07-07 14:07:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 14:07:23,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-07-07 14:07:23,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:23,057 INFO L225 Difference]: With dead ends: 3722 [2020-07-07 14:07:23,057 INFO L226 Difference]: Without dead ends: 2820 [2020-07-07 14:07:23,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2020-07-07 14:07:23,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2020-07-07 14:07:23,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2091. [2020-07-07 14:07:23,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-07-07 14:07:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2967 transitions. [2020-07-07 14:07:23,391 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2967 transitions. Word has length 165 [2020-07-07 14:07:23,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:23,392 INFO L479 AbstractCegarLoop]: Abstraction has 2091 states and 2967 transitions. [2020-07-07 14:07:23,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 14:07:23,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2967 transitions. [2020-07-07 14:07:23,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-07-07 14:07:23,402 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:23,403 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:07:23,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 14:07:23,403 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:23,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:23,404 INFO L82 PathProgramCache]: Analyzing trace with hash 755814652, now seen corresponding path program 1 times [2020-07-07 14:07:23,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:23,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125126383] [2020-07-07 14:07:23,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:23,768 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:23,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125126383] [2020-07-07 14:07:23,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:23,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 14:07:23,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055082709] [2020-07-07 14:07:23,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 14:07:23,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:23,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 14:07:23,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-07 14:07:23,772 INFO L87 Difference]: Start difference. First operand 2091 states and 2967 transitions. Second operand 12 states. [2020-07-07 14:07:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:29,306 INFO L93 Difference]: Finished difference Result 8991 states and 15078 transitions. [2020-07-07 14:07:29,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-07 14:07:29,306 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 230 [2020-07-07 14:07:29,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:29,357 INFO L225 Difference]: With dead ends: 8991 [2020-07-07 14:07:29,358 INFO L226 Difference]: Without dead ends: 6948 [2020-07-07 14:07:29,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=499, Invalid=1853, Unknown=0, NotChecked=0, Total=2352 [2020-07-07 14:07:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2020-07-07 14:07:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 4943. [2020-07-07 14:07:30,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4943 states. [2020-07-07 14:07:30,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7731 transitions. [2020-07-07 14:07:30,469 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7731 transitions. Word has length 230 [2020-07-07 14:07:30,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:30,472 INFO L479 AbstractCegarLoop]: Abstraction has 4943 states and 7731 transitions. [2020-07-07 14:07:30,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 14:07:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7731 transitions. [2020-07-07 14:07:30,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-07 14:07:30,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:30,484 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:07:30,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 14:07:30,485 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:30,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:30,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1577887462, now seen corresponding path program 1 times [2020-07-07 14:07:30,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:30,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955905542] [2020-07-07 14:07:30,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:30,764 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:30,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955905542] [2020-07-07 14:07:30,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:30,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 14:07:30,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125702041] [2020-07-07 14:07:30,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 14:07:30,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:30,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 14:07:30,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-07 14:07:30,767 INFO L87 Difference]: Start difference. First operand 4943 states and 7731 transitions. Second operand 9 states. [2020-07-07 14:07:35,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:35,081 INFO L93 Difference]: Finished difference Result 14902 states and 25159 transitions. [2020-07-07 14:07:35,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 14:07:35,082 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 226 [2020-07-07 14:07:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:35,158 INFO L225 Difference]: With dead ends: 14902 [2020-07-07 14:07:35,158 INFO L226 Difference]: Without dead ends: 10009 [2020-07-07 14:07:35,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2020-07-07 14:07:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2020-07-07 14:07:36,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 8124. [2020-07-07 14:07:36,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8124 states. [2020-07-07 14:07:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8124 states to 8124 states and 13044 transitions. [2020-07-07 14:07:36,571 INFO L78 Accepts]: Start accepts. Automaton has 8124 states and 13044 transitions. Word has length 226 [2020-07-07 14:07:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:36,572 INFO L479 AbstractCegarLoop]: Abstraction has 8124 states and 13044 transitions. [2020-07-07 14:07:36,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 14:07:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8124 states and 13044 transitions. [2020-07-07 14:07:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-07-07 14:07:36,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:36,592 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:07:36,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 14:07:36,593 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:36,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:36,593 INFO L82 PathProgramCache]: Analyzing trace with hash 550596668, now seen corresponding path program 1 times [2020-07-07 14:07:36,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:36,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550218444] [2020-07-07 14:07:36,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:37,100 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:37,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550218444] [2020-07-07 14:07:37,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:37,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 14:07:37,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116922837] [2020-07-07 14:07:37,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 14:07:37,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:37,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 14:07:37,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-07 14:07:37,103 INFO L87 Difference]: Start difference. First operand 8124 states and 13044 transitions. Second operand 11 states. [2020-07-07 14:07:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:41,396 INFO L93 Difference]: Finished difference Result 18545 states and 29578 transitions. [2020-07-07 14:07:41,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 14:07:41,396 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 279 [2020-07-07 14:07:41,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:41,474 INFO L225 Difference]: With dead ends: 18545 [2020-07-07 14:07:41,474 INFO L226 Difference]: Without dead ends: 10470 [2020-07-07 14:07:41,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2020-07-07 14:07:41,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2020-07-07 14:07:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8112. [2020-07-07 14:07:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8112 states. [2020-07-07 14:07:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8112 states to 8112 states and 13019 transitions. [2020-07-07 14:07:42,596 INFO L78 Accepts]: Start accepts. Automaton has 8112 states and 13019 transitions. Word has length 279 [2020-07-07 14:07:42,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:42,597 INFO L479 AbstractCegarLoop]: Abstraction has 8112 states and 13019 transitions. [2020-07-07 14:07:42,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 14:07:42,597 INFO L276 IsEmpty]: Start isEmpty. Operand 8112 states and 13019 transitions. [2020-07-07 14:07:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-07 14:07:42,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:42,609 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:07:42,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 14:07:42,610 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:42,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:42,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1697090985, now seen corresponding path program 1 times [2020-07-07 14:07:42,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:42,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204362970] [2020-07-07 14:07:42,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:42,866 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:42,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204362970] [2020-07-07 14:07:42,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:42,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 14:07:42,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229266272] [2020-07-07 14:07:42,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 14:07:42,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:42,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 14:07:42,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-07 14:07:42,868 INFO L87 Difference]: Start difference. First operand 8112 states and 13019 transitions. Second operand 10 states. [2020-07-07 14:07:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:46,704 INFO L93 Difference]: Finished difference Result 18146 states and 29108 transitions. [2020-07-07 14:07:46,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-07 14:07:46,704 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2020-07-07 14:07:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:46,762 INFO L225 Difference]: With dead ends: 18146 [2020-07-07 14:07:46,762 INFO L226 Difference]: Without dead ends: 10076 [2020-07-07 14:07:46,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2020-07-07 14:07:46,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2020-07-07 14:07:47,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 8104. [2020-07-07 14:07:47,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8104 states. [2020-07-07 14:07:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8104 states to 8104 states and 13004 transitions. [2020-07-07 14:07:47,983 INFO L78 Accepts]: Start accepts. Automaton has 8104 states and 13004 transitions. Word has length 220 [2020-07-07 14:07:47,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:47,984 INFO L479 AbstractCegarLoop]: Abstraction has 8104 states and 13004 transitions. [2020-07-07 14:07:47,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 14:07:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8104 states and 13004 transitions. [2020-07-07 14:07:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-07 14:07:47,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:47,995 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:07:47,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 14:07:47,995 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:47,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:47,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1424066057, now seen corresponding path program 1 times [2020-07-07 14:07:47,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:47,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048043872] [2020-07-07 14:07:47,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:48,249 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:48,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048043872] [2020-07-07 14:07:48,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:48,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 14:07:48,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393975972] [2020-07-07 14:07:48,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 14:07:48,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:48,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 14:07:48,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-07 14:07:48,251 INFO L87 Difference]: Start difference. First operand 8104 states and 13004 transitions. Second operand 10 states. [2020-07-07 14:07:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:52,250 INFO L93 Difference]: Finished difference Result 20699 states and 35038 transitions. [2020-07-07 14:07:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-07 14:07:52,251 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2020-07-07 14:07:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:52,319 INFO L225 Difference]: With dead ends: 20699 [2020-07-07 14:07:52,319 INFO L226 Difference]: Without dead ends: 12638 [2020-07-07 14:07:52,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2020-07-07 14:07:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12638 states. [2020-07-07 14:07:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12638 to 10350. [2020-07-07 14:07:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10350 states. [2020-07-07 14:07:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10350 states to 10350 states and 16012 transitions. [2020-07-07 14:07:54,424 INFO L78 Accepts]: Start accepts. Automaton has 10350 states and 16012 transitions. Word has length 220 [2020-07-07 14:07:54,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:07:54,425 INFO L479 AbstractCegarLoop]: Abstraction has 10350 states and 16012 transitions. [2020-07-07 14:07:54,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 14:07:54,426 INFO L276 IsEmpty]: Start isEmpty. Operand 10350 states and 16012 transitions. [2020-07-07 14:07:54,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-07 14:07:54,435 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:07:54,435 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:07:54,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 14:07:54,436 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:07:54,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:07:54,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1439116596, now seen corresponding path program 1 times [2020-07-07 14:07:54,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:07:54,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573671922] [2020-07-07 14:07:54,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:07:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:07:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:07:54,767 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:07:54,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573671922] [2020-07-07 14:07:54,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:07:54,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 14:07:54,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073782211] [2020-07-07 14:07:54,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 14:07:54,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:07:54,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 14:07:54,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-07-07 14:07:54,769 INFO L87 Difference]: Start difference. First operand 10350 states and 16012 transitions. Second operand 12 states. [2020-07-07 14:07:59,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:07:59,077 INFO L93 Difference]: Finished difference Result 22667 states and 35758 transitions. [2020-07-07 14:07:59,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-07 14:07:59,078 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2020-07-07 14:07:59,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:07:59,124 INFO L225 Difference]: With dead ends: 22667 [2020-07-07 14:07:59,124 INFO L226 Difference]: Without dead ends: 9475 [2020-07-07 14:07:59,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-07-07 14:07:59,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9475 states. [2020-07-07 14:08:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9475 to 7824. [2020-07-07 14:08:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7824 states. [2020-07-07 14:08:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7824 states to 7824 states and 11208 transitions. [2020-07-07 14:08:00,356 INFO L78 Accepts]: Start accepts. Automaton has 7824 states and 11208 transitions. Word has length 220 [2020-07-07 14:08:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:08:00,357 INFO L479 AbstractCegarLoop]: Abstraction has 7824 states and 11208 transitions. [2020-07-07 14:08:00,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 14:08:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 7824 states and 11208 transitions. [2020-07-07 14:08:00,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-07-07 14:08:00,364 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:08:00,365 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:08:00,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 14:08:00,365 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:08:00,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:08:00,366 INFO L82 PathProgramCache]: Analyzing trace with hash 219517836, now seen corresponding path program 1 times [2020-07-07 14:08:00,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:08:00,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934928040] [2020-07-07 14:08:00,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:08:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:08:00,629 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:08:00,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934928040] [2020-07-07 14:08:00,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:08:00,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 14:08:00,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887402804] [2020-07-07 14:08:00,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 14:08:00,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:08:00,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 14:08:00,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-07 14:08:00,633 INFO L87 Difference]: Start difference. First operand 7824 states and 11208 transitions. Second operand 10 states. [2020-07-07 14:08:09,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:08:09,297 INFO L93 Difference]: Finished difference Result 24720 states and 38989 transitions. [2020-07-07 14:08:09,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-07 14:08:09,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-07-07 14:08:09,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:08:09,379 INFO L225 Difference]: With dead ends: 24720 [2020-07-07 14:08:09,379 INFO L226 Difference]: Without dead ends: 16939 [2020-07-07 14:08:09,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2020-07-07 14:08:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16939 states. [2020-07-07 14:08:11,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16939 to 14239. [2020-07-07 14:08:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14239 states. [2020-07-07 14:08:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14239 states to 14239 states and 20157 transitions. [2020-07-07 14:08:11,473 INFO L78 Accepts]: Start accepts. Automaton has 14239 states and 20157 transitions. Word has length 230 [2020-07-07 14:08:11,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:08:11,473 INFO L479 AbstractCegarLoop]: Abstraction has 14239 states and 20157 transitions. [2020-07-07 14:08:11,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 14:08:11,474 INFO L276 IsEmpty]: Start isEmpty. Operand 14239 states and 20157 transitions. [2020-07-07 14:08:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-07-07 14:08:11,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:08:11,490 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:08:11,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 14:08:11,490 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:08:11,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:08:11,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1575682267, now seen corresponding path program 1 times [2020-07-07 14:08:11,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:08:11,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226626849] [2020-07-07 14:08:11,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:08:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-07 14:08:11,764 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:08:11,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226626849] [2020-07-07 14:08:11,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:08:11,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 14:08:11,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766820106] [2020-07-07 14:08:11,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 14:08:11,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:08:11,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 14:08:11,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-07 14:08:11,766 INFO L87 Difference]: Start difference. First operand 14239 states and 20157 transitions. Second operand 12 states. [2020-07-07 14:08:12,747 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-07 14:08:16,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:08:16,866 INFO L93 Difference]: Finished difference Result 30730 states and 43848 transitions. [2020-07-07 14:08:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-07 14:08:16,867 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 280 [2020-07-07 14:08:16,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:08:16,940 INFO L225 Difference]: With dead ends: 30730 [2020-07-07 14:08:16,940 INFO L226 Difference]: Without dead ends: 16536 [2020-07-07 14:08:16,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2020-07-07 14:08:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16536 states. [2020-07-07 14:08:19,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16536 to 12212. [2020-07-07 14:08:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12212 states. [2020-07-07 14:08:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12212 states to 12212 states and 16213 transitions. [2020-07-07 14:08:19,814 INFO L78 Accepts]: Start accepts. Automaton has 12212 states and 16213 transitions. Word has length 280 [2020-07-07 14:08:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:08:19,814 INFO L479 AbstractCegarLoop]: Abstraction has 12212 states and 16213 transitions. [2020-07-07 14:08:19,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 14:08:19,815 INFO L276 IsEmpty]: Start isEmpty. Operand 12212 states and 16213 transitions. [2020-07-07 14:08:19,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-07 14:08:19,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:08:19,826 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:08:19,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 14:08:19,827 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:08:19,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:08:19,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1226891913, now seen corresponding path program 1 times [2020-07-07 14:08:19,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:08:19,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75733704] [2020-07-07 14:08:19,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:08:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:08:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:08:20,289 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:08:20,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75733704] [2020-07-07 14:08:20,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:08:20,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-07 14:08:20,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472950965] [2020-07-07 14:08:20,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 14:08:20,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:08:20,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 14:08:20,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 14:08:20,292 INFO L87 Difference]: Start difference. First operand 12212 states and 16213 transitions. Second operand 15 states. [2020-07-07 14:08:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:08:28,767 INFO L93 Difference]: Finished difference Result 21296 states and 28380 transitions. [2020-07-07 14:08:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-07-07 14:08:28,768 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 295 [2020-07-07 14:08:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:08:28,796 INFO L225 Difference]: With dead ends: 21296 [2020-07-07 14:08:28,796 INFO L226 Difference]: Without dead ends: 9178 [2020-07-07 14:08:28,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1405 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1168, Invalid=3944, Unknown=0, NotChecked=0, Total=5112 [2020-07-07 14:08:28,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9178 states. [2020-07-07 14:08:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9178 to 7287. [2020-07-07 14:08:29,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7287 states. [2020-07-07 14:08:29,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7287 states to 7287 states and 8914 transitions. [2020-07-07 14:08:29,769 INFO L78 Accepts]: Start accepts. Automaton has 7287 states and 8914 transitions. Word has length 295 [2020-07-07 14:08:29,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:08:29,769 INFO L479 AbstractCegarLoop]: Abstraction has 7287 states and 8914 transitions. [2020-07-07 14:08:29,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 14:08:29,769 INFO L276 IsEmpty]: Start isEmpty. Operand 7287 states and 8914 transitions. [2020-07-07 14:08:29,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-07-07 14:08:29,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:08:29,777 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:08:29,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 14:08:29,778 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:08:29,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:08:29,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1144377897, now seen corresponding path program 1 times [2020-07-07 14:08:29,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:08:29,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1738884709] [2020-07-07 14:08:29,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:08:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 14:08:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 14:08:29,924 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:08:29,925 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 14:08:29,925 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 14:08:29,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 14:08:29,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 02:08:29 BoogieIcfgContainer [2020-07-07 14:08:29,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 14:08:29,965 INFO L168 Benchmark]: Toolchain (without parser) took 79598.40 ms. Allocated memory was 146.8 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 104.7 MB in the beginning and 841.0 MB in the end (delta: -736.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-07-07 14:08:29,965 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 14:08:29,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.97 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 104.3 MB in the beginning and 180.4 MB in the end (delta: -76.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-07-07 14:08:29,967 INFO L168 Benchmark]: Boogie Preprocessor took 43.36 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 178.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-07 14:08:29,968 INFO L168 Benchmark]: RCFGBuilder took 639.66 ms. Allocated memory is still 204.5 MB. Free memory was 178.5 MB in the beginning and 135.7 MB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2020-07-07 14:08:29,968 INFO L168 Benchmark]: TraceAbstraction took 78341.55 ms. Allocated memory was 204.5 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 135.7 MB in the beginning and 841.0 MB in the end (delta: -705.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-07-07 14:08:29,972 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 146.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 568.97 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 104.3 MB in the beginning and 180.4 MB in the end (delta: -76.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.36 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 178.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 639.66 ms. Allocated memory is still 204.5 MB. Free memory was 178.5 MB in the beginning and 135.7 MB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 78341.55 ms. Allocated memory was 204.5 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 135.7 MB in the beginning and 841.0 MB in the end (delta: -705.3 MB). Peak memory consumption was 1.9 GB. 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 m_st ; [L19] int t1_st ; [L20] int t2_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int t2_i ; [L24] int M_E = 2; [L25] int T1_E = 2; [L26] int T2_E = 2; [L27] int E_1 = 2; [L28] int E_2 = 2; [L563] int __retres1 ; [L567] CALL init_model() [L477] m_i = 1 [L478] t1_i = 1 [L479] t2_i = 1 [L567] RET init_model() [L568] CALL start_simulation() [L504] int kernel_st ; [L505] int tmp ; [L506] int tmp___0 ; [L510] kernel_st = 0 [L511] FCALL update_channels() [L512] CALL init_threads() [L211] COND TRUE m_i == 1 [L212] m_st = 0 [L216] COND TRUE t1_i == 1 [L217] t1_st = 0 [L221] COND TRUE t2_i == 1 [L222] t2_st = 0 [L512] RET init_threads() [L513] CALL fire_delta_events() [L324] COND FALSE !(M_E == 0) [L329] COND FALSE !(T1_E == 0) [L334] COND FALSE !(T2_E == 0) [L339] COND FALSE !(E_1 == 0) [L344] COND FALSE !(E_2 == 0) [L513] RET fire_delta_events() [L514] CALL activate_threads() [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; [L393] CALL, EXPR is_master_triggered() [L143] int __retres1 ; [L146] COND FALSE !(m_pc == 1) [L156] __retres1 = 0 [L158] return (__retres1); [L393] RET, EXPR is_master_triggered() [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) [L401] CALL, EXPR is_transmit1_triggered() [L162] int __retres1 ; [L165] COND FALSE !(t1_pc == 1) [L175] __retres1 = 0 [L177] return (__retres1); [L401] RET, EXPR is_transmit1_triggered() [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) [L409] CALL, EXPR is_transmit2_triggered() [L181] int __retres1 ; [L184] COND FALSE !(t2_pc == 1) [L194] __retres1 = 0 [L196] return (__retres1); [L409] RET, EXPR is_transmit2_triggered() [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) [L514] RET activate_threads() [L515] CALL reset_delta_events() [L357] COND FALSE !(M_E == 1) [L362] COND FALSE !(T1_E == 1) [L367] COND FALSE !(T2_E == 1) [L372] COND FALSE !(E_1 == 1) [L377] COND FALSE !(E_2 == 1) [L515] RET reset_delta_events() [L518] COND TRUE 1 [L521] kernel_st = 1 [L522] CALL eval() [L257] int tmp ; [L261] COND TRUE 1 [L264] CALL, EXPR exists_runnable_thread() [L231] int __retres1 ; [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 [L252] return (__retres1); [L264] RET, EXPR exists_runnable_thread() [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND FALSE !(\read(tmp_ndt_1)) [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 [L291] CALL transmit1() [L78] COND TRUE t1_pc == 0 [L89] COND TRUE 1 [L91] t1_pc = 1 [L92] t1_st = 2 [L291] RET transmit1() [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 [L305] CALL transmit2() [L113] COND TRUE t2_pc == 0 [L124] COND TRUE 1 [L126] t2_pc = 1 [L127] t2_st = 2 [L305] RET transmit2() [L261] COND TRUE 1 [L264] CALL, EXPR exists_runnable_thread() [L231] int __retres1 ; [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 [L252] return (__retres1); [L264] RET, EXPR exists_runnable_thread() [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp_ndt_1) [L276] m_st = 1 [L277] CALL master() [L37] COND TRUE m_pc == 0 [L48] COND TRUE 1 [L51] E_1 = 1 [L52] CALL immediate_notify() [L425] CALL activate_threads() [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; [L393] CALL, EXPR is_master_triggered() [L143] int __retres1 ; [L146] COND FALSE !(m_pc == 1) [L156] __retres1 = 0 [L158] return (__retres1); [L393] RET, EXPR is_master_triggered() [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) [L401] CALL, EXPR is_transmit1_triggered() [L162] int __retres1 ; [L165] COND TRUE t1_pc == 1 [L166] COND TRUE E_1 == 1 [L167] __retres1 = 1 [L177] return (__retres1); [L401] RET, EXPR is_transmit1_triggered() [L401] tmp___0 = is_transmit1_triggered() [L403] COND TRUE \read(tmp___0) [L404] t1_st = 0 [L409] CALL, EXPR is_transmit2_triggered() [L181] int __retres1 ; [L184] COND TRUE t2_pc == 1 [L185] COND FALSE !(E_2 == 1) [L194] __retres1 = 0 [L196] return (__retres1); [L409] RET, EXPR is_transmit2_triggered() [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) [L425] RET activate_threads() [L52] RET immediate_notify() [L53] E_1 = 2 [L56] COND TRUE 1 [L58] m_pc = 1 [L59] m_st = 2 [L277] RET master() [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 [L291] CALL transmit1() [L78] COND FALSE !(t1_pc == 0) [L81] COND TRUE t1_pc == 1 [L97] E_2 = 1 [L98] CALL immediate_notify() [L425] CALL activate_threads() [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; [L393] CALL, EXPR is_master_triggered() [L143] int __retres1 ; [L146] COND TRUE m_pc == 1 [L147] COND FALSE !(M_E == 1) [L156] __retres1 = 0 [L158] return (__retres1); [L393] RET, EXPR is_master_triggered() [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) [L401] CALL, EXPR is_transmit1_triggered() [L162] int __retres1 ; [L165] COND TRUE t1_pc == 1 [L166] COND FALSE !(E_1 == 1) [L175] __retres1 = 0 [L177] return (__retres1); [L401] RET, EXPR is_transmit1_triggered() [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) [L409] CALL, EXPR is_transmit2_triggered() [L181] int __retres1 ; [L184] COND TRUE t2_pc == 1 [L185] COND TRUE E_2 == 1 [L186] __retres1 = 1 [L196] return (__retres1); [L409] RET, EXPR is_transmit2_triggered() [L409] tmp___1 = is_transmit2_triggered() [L411] COND TRUE \read(tmp___1) [L412] t2_st = 0 [L425] RET activate_threads() [L98] RET immediate_notify() [L99] E_2 = 2 [L89] COND TRUE 1 [L91] t1_pc = 1 [L92] t1_st = 2 [L291] RET transmit1() [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 [L305] CALL transmit2() [L113] COND FALSE !(t2_pc == 0) [L116] COND TRUE t2_pc == 1 [L132] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 257 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 78.2s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 59.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4119 SDtfs, 20472 SDslu, 1649 SDs, 0 SdLazy, 25843 SolverSat, 6257 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 990 GetRequests, 600 SyntacticMatches, 2 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14239occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 22667 StatesRemovedByMinimization, 13 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...