/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:33:59,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:33:59,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:33:59,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:33:59,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:33:59,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:33:59,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:33:59,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:33:59,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:33:59,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:33:59,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:33:59,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:33:59,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:33:59,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:33:59,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:33:59,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:33:59,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:33:59,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:33:59,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:33:59,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:33:59,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:33:59,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:33:59,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:33:59,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:33:59,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:33:59,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:33:59,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:33:59,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:33:59,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:33:59,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:33:59,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:33:59,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:33:59,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:33:59,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:33:59,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:33:59,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:33:59,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:33:59,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:33:59,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:33:59,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:33:59,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:33:59,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:33:59,505 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:33:59,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:33:59,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:33:59,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:33:59,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:33:59,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:33:59,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:33:59,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:33:59,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:33:59,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:33:59,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:33:59,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:33:59,508 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:33:59,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:33:59,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:33:59,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:33:59,509 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:33:59,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:33:59,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:33:59,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:33:59,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:33:59,713 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:33:59,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2022-01-10 06:33:59,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e439085d/45f680b62ce24beebc76e10051eefa6e/FLAGabe27bcd4 [2022-01-10 06:34:00,200 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:34:00,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2022-01-10 06:34:00,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e439085d/45f680b62ce24beebc76e10051eefa6e/FLAGabe27bcd4 [2022-01-10 06:34:00,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e439085d/45f680b62ce24beebc76e10051eefa6e [2022-01-10 06:34:00,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:34:00,227 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:34:00,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:00,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:34:00,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:34:00,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243b565a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00, skipping insertion in model container [2022-01-10 06:34:00,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:34:00,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:00,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2022-01-10 06:34:00,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:00,528 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:34:00,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:00,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2022-01-10 06:34:00,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:00,599 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:34:00,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2022-01-10 06:34:00,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:00,660 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:34:00,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00 WrapperNode [2022-01-10 06:34:00,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:00,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:00,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:34:00,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:34:00,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,708 INFO L137 Inliner]: procedures = 57, calls = 155, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 251 [2022-01-10 06:34:00,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:00,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:34:00,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:34:00,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:34:00,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:34:00,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:34:00,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:34:00,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:34:00,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (1/1) ... [2022-01-10 06:34:00,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:00,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:34:00,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:34:00,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:34:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:34:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-01-10 06:34:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-01-10 06:34:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:34:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:34:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-01-10 06:34:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-01-10 06:34:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:34:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:34:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:34:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:34:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:34:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:34:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:34:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:34:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:34:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:34:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:34:00,886 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:34:00,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:34:01,144 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:34:01,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:34:01,149 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:34:01,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:01 BoogieIcfgContainer [2022-01-10 06:34:01,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:34:01,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:34:01,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:34:01,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:34:01,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:34:00" (1/3) ... [2022-01-10 06:34:01,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e339514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:01, skipping insertion in model container [2022-01-10 06:34:01,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:00" (2/3) ... [2022-01-10 06:34:01,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e339514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:01, skipping insertion in model container [2022-01-10 06:34:01,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:01" (3/3) ... [2022-01-10 06:34:01,160 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2022-01-10 06:34:01,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:34:01,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:34:01,206 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:34:01,212 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:34:01,212 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:34:01,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-01-10 06:34:01,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 06:34:01,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:01,239 INFO L514 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] [2022-01-10 06:34:01,240 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:01,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:01,244 INFO L85 PathProgramCache]: Analyzing trace with hash 644770988, now seen corresponding path program 1 times [2022-01-10 06:34:01,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:01,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628700656] [2022-01-10 06:34:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:01,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:01,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:01,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:01,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:34:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:01,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:34:01,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:01,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:01,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:01,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628700656] [2022-01-10 06:34:01,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628700656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:01,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:01,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:01,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471019332] [2022-01-10 06:34:01,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:01,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:34:01,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:34:01,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:01,449 INFO L87 Difference]: Start difference. First operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:01,471 INFO L93 Difference]: Finished difference Result 168 states and 229 transitions. [2022-01-10 06:34:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:34:01,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-01-10 06:34:01,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:01,479 INFO L225 Difference]: With dead ends: 168 [2022-01-10 06:34:01,479 INFO L226 Difference]: Without dead ends: 79 [2022-01-10 06:34:01,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:01,488 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:01,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-01-10 06:34:01,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-01-10 06:34:01,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-01-10 06:34:01,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2022-01-10 06:34:01,520 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 25 [2022-01-10 06:34:01,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:01,521 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2022-01-10 06:34:01,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2022-01-10 06:34:01,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 06:34:01,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:01,523 INFO L514 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] [2022-01-10 06:34:01,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:01,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:01,729 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:01,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:01,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1977303075, now seen corresponding path program 1 times [2022-01-10 06:34:01,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:01,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754915488] [2022-01-10 06:34:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:01,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:01,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:01,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:01,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:34:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:01,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:01,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:01,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:01,845 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:01,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754915488] [2022-01-10 06:34:01,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754915488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:01,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:01,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:01,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459675040] [2022-01-10 06:34:01,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:01,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:01,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:01,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:01,853 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:01,875 INFO L93 Difference]: Finished difference Result 124 states and 160 transitions. [2022-01-10 06:34:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:01,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-01-10 06:34:01,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:01,876 INFO L225 Difference]: With dead ends: 124 [2022-01-10 06:34:01,876 INFO L226 Difference]: Without dead ends: 70 [2022-01-10 06:34:01,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:01,878 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 12 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:01,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-01-10 06:34:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-01-10 06:34:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-10 06:34:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-01-10 06:34:01,886 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 26 [2022-01-10 06:34:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:01,888 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-01-10 06:34:01,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:01,888 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-01-10 06:34:01,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 06:34:01,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:01,889 INFO L514 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] [2022-01-10 06:34:01,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:02,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:02,097 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:02,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:02,098 INFO L85 PathProgramCache]: Analyzing trace with hash 378859764, now seen corresponding path program 1 times [2022-01-10 06:34:02,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:02,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343674512] [2022-01-10 06:34:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:02,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:02,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:02,099 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:02,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:34:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:02,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:02,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:02,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:02,221 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:02,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343674512] [2022-01-10 06:34:02,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343674512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:02,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:02,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:02,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729698075] [2022-01-10 06:34:02,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:02,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:02,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:02,230 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:02,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:02,237 INFO L93 Difference]: Finished difference Result 133 states and 174 transitions. [2022-01-10 06:34:02,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:02,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-01-10 06:34:02,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:02,240 INFO L225 Difference]: With dead ends: 133 [2022-01-10 06:34:02,240 INFO L226 Difference]: Without dead ends: 70 [2022-01-10 06:34:02,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:02,241 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:02,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:02,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-01-10 06:34:02,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-01-10 06:34:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-10 06:34:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-01-10 06:34:02,246 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 30 [2022-01-10 06:34:02,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:02,247 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-01-10 06:34:02,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-01-10 06:34:02,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 06:34:02,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:02,248 INFO L514 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] [2022-01-10 06:34:02,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:02,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:02,457 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:02,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash 533499176, now seen corresponding path program 1 times [2022-01-10 06:34:02,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:02,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786824570] [2022-01-10 06:34:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:02,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:02,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:02,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:02,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:34:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:02,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:34:02,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:02,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:02,582 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:02,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786824570] [2022-01-10 06:34:02,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786824570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:02,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:02,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:02,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379840186] [2022-01-10 06:34:02,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:02,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:02,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:02,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:02,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:02,584 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:02,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:02,634 INFO L93 Difference]: Finished difference Result 177 states and 231 transitions. [2022-01-10 06:34:02,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:02,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-01-10 06:34:02,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:02,635 INFO L225 Difference]: With dead ends: 177 [2022-01-10 06:34:02,635 INFO L226 Difference]: Without dead ends: 114 [2022-01-10 06:34:02,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:02,637 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 54 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:02,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 172 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-01-10 06:34:02,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2022-01-10 06:34:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 94 states have internal predecessors, (114), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2022-01-10 06:34:02,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 142 transitions. [2022-01-10 06:34:02,647 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 142 transitions. Word has length 38 [2022-01-10 06:34:02,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:02,647 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 142 transitions. [2022-01-10 06:34:02,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:02,647 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2022-01-10 06:34:02,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 06:34:02,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:02,648 INFO L514 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] [2022-01-10 06:34:02,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-01-10 06:34:02,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:02,854 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:02,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:02,855 INFO L85 PathProgramCache]: Analyzing trace with hash -504847281, now seen corresponding path program 1 times [2022-01-10 06:34:02,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:02,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84208082] [2022-01-10 06:34:02,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:02,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:02,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:02,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:02,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:34:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:02,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:34:02,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:02,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:02,965 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:02,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84208082] [2022-01-10 06:34:02,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84208082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:02,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:02,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:34:02,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616728772] [2022-01-10 06:34:02,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:02,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:02,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:02,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:02,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:02,966 INFO L87 Difference]: Start difference. First operand 112 states and 142 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:02,997 INFO L93 Difference]: Finished difference Result 223 states and 290 transitions. [2022-01-10 06:34:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:34:02,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-01-10 06:34:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:02,999 INFO L225 Difference]: With dead ends: 223 [2022-01-10 06:34:02,999 INFO L226 Difference]: Without dead ends: 118 [2022-01-10 06:34:03,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:03,003 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 10 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:03,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 352 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-01-10 06:34:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 115. [2022-01-10 06:34:03,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 90 states have (on average 1.3) internal successors, (117), 97 states have internal predecessors, (117), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2022-01-10 06:34:03,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 145 transitions. [2022-01-10 06:34:03,014 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 145 transitions. Word has length 44 [2022-01-10 06:34:03,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:03,014 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 145 transitions. [2022-01-10 06:34:03,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 145 transitions. [2022-01-10 06:34:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 06:34:03,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:03,015 INFO L514 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] [2022-01-10 06:34:03,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-01-10 06:34:03,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:03,216 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:03,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:03,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1322495731, now seen corresponding path program 1 times [2022-01-10 06:34:03,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:03,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386405199] [2022-01-10 06:34:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:03,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:03,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:03,224 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:03,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:34:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:03,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:34:03,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:03,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:03,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:03,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:03,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386405199] [2022-01-10 06:34:03,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386405199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:03,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:03,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:34:03,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809998994] [2022-01-10 06:34:03,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:03,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:34:03,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:03,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:34:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:34:03,352 INFO L87 Difference]: Start difference. First operand 115 states and 145 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:03,369 INFO L93 Difference]: Finished difference Result 231 states and 302 transitions. [2022-01-10 06:34:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:34:03,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-01-10 06:34:03,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:03,371 INFO L225 Difference]: With dead ends: 231 [2022-01-10 06:34:03,371 INFO L226 Difference]: Without dead ends: 123 [2022-01-10 06:34:03,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:03,372 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 11 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:03,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:03,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-01-10 06:34:03,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 117. [2022-01-10 06:34:03,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 99 states have internal predecessors, (119), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2022-01-10 06:34:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2022-01-10 06:34:03,379 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 44 [2022-01-10 06:34:03,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:03,379 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-01-10 06:34:03,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:03,379 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2022-01-10 06:34:03,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 06:34:03,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:03,380 INFO L514 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] [2022-01-10 06:34:03,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:03,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:03,589 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1103641013, now seen corresponding path program 1 times [2022-01-10 06:34:03,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:03,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428008009] [2022-01-10 06:34:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:03,590 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:03,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:03,591 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:03,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:34:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:03,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:34:03,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:03,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:03,732 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:03,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428008009] [2022-01-10 06:34:03,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428008009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:03,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:03,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:03,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067736921] [2022-01-10 06:34:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:03,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:03,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:03,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:03,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:03,734 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:03,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:03,754 INFO L93 Difference]: Finished difference Result 277 states and 352 transitions. [2022-01-10 06:34:03,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:03,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-01-10 06:34:03,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:03,761 INFO L225 Difference]: With dead ends: 277 [2022-01-10 06:34:03,761 INFO L226 Difference]: Without dead ends: 167 [2022-01-10 06:34:03,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:03,762 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 41 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:03,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 167 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:03,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-01-10 06:34:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2022-01-10 06:34:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 129 states have (on average 1.2713178294573644) internal successors, (164), 137 states have internal predecessors, (164), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (22), 17 states have call predecessors, (22), 18 states have call successors, (22) [2022-01-10 06:34:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 204 transitions. [2022-01-10 06:34:03,778 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 204 transitions. Word has length 44 [2022-01-10 06:34:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:03,779 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 204 transitions. [2022-01-10 06:34:03,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 204 transitions. [2022-01-10 06:34:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 06:34:03,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:03,782 INFO L514 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] [2022-01-10 06:34:03,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:03,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:03,989 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:03,990 INFO L85 PathProgramCache]: Analyzing trace with hash 636133877, now seen corresponding path program 1 times [2022-01-10 06:34:03,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:03,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752912487] [2022-01-10 06:34:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:03,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:03,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:03,991 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:03,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:34:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:04,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:34:04,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:04,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:04,136 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:04,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752912487] [2022-01-10 06:34:04,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752912487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:04,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:04,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:34:04,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255368765] [2022-01-10 06:34:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:04,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:04,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:04,137 INFO L87 Difference]: Start difference. First operand 165 states and 204 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:34:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:04,171 INFO L93 Difference]: Finished difference Result 324 states and 402 transitions. [2022-01-10 06:34:04,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:04,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-01-10 06:34:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:04,173 INFO L225 Difference]: With dead ends: 324 [2022-01-10 06:34:04,173 INFO L226 Difference]: Without dead ends: 166 [2022-01-10 06:34:04,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:04,174 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 25 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:04,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 349 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-01-10 06:34:04,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2022-01-10 06:34:04,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 127 states have (on average 1.2598425196850394) internal successors, (160), 135 states have internal predecessors, (160), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (22), 17 states have call predecessors, (22), 18 states have call successors, (22) [2022-01-10 06:34:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 200 transitions. [2022-01-10 06:34:04,181 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 200 transitions. Word has length 46 [2022-01-10 06:34:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:04,181 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 200 transitions. [2022-01-10 06:34:04,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:34:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 200 transitions. [2022-01-10 06:34:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 06:34:04,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:04,182 INFO L514 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] [2022-01-10 06:34:04,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:04,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:04,390 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:04,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:04,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1068859185, now seen corresponding path program 1 times [2022-01-10 06:34:04,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:04,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596811675] [2022-01-10 06:34:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:04,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:04,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:04,392 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:04,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:34:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:04,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:34:04,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:04,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:04,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:04,499 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:04,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596811675] [2022-01-10 06:34:04,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596811675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:04,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:04,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:34:04,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784680020] [2022-01-10 06:34:04,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:04,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:04,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:04,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:04,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:04,501 INFO L87 Difference]: Start difference. First operand 163 states and 200 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:34:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:04,540 INFO L93 Difference]: Finished difference Result 276 states and 347 transitions. [2022-01-10 06:34:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-01-10 06:34:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:04,542 INFO L225 Difference]: With dead ends: 276 [2022-01-10 06:34:04,542 INFO L226 Difference]: Without dead ends: 166 [2022-01-10 06:34:04,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:04,544 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 59 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:04,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 453 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-01-10 06:34:04,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2022-01-10 06:34:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 127 states have (on average 1.2283464566929134) internal successors, (156), 135 states have internal predecessors, (156), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (21), 17 states have call predecessors, (21), 18 states have call successors, (21) [2022-01-10 06:34:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2022-01-10 06:34:04,553 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 48 [2022-01-10 06:34:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:04,553 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2022-01-10 06:34:04,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:34:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2022-01-10 06:34:04,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 06:34:04,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:04,554 INFO L514 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] [2022-01-10 06:34:04,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:04,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:04,761 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:04,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:04,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1054718299, now seen corresponding path program 1 times [2022-01-10 06:34:04,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:04,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328325165] [2022-01-10 06:34:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:04,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:04,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:04,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:04,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:34:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:04,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:34:04,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:04,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:04,914 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:04,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328325165] [2022-01-10 06:34:04,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328325165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:04,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:04,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:34:04,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77155227] [2022-01-10 06:34:04,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:04,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:34:04,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:04,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:34:04,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:34:04,915 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:34:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:05,126 INFO L93 Difference]: Finished difference Result 524 states and 649 transitions. [2022-01-10 06:34:05,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:34:05,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2022-01-10 06:34:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:05,128 INFO L225 Difference]: With dead ends: 524 [2022-01-10 06:34:05,129 INFO L226 Difference]: Without dead ends: 414 [2022-01-10 06:34:05,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-10 06:34:05,129 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 237 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:05,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 405 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:34:05,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-01-10 06:34:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 400. [2022-01-10 06:34:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 313 states have (on average 1.233226837060703) internal successors, (386), 332 states have internal predecessors, (386), 43 states have call successors, (43), 39 states have call predecessors, (43), 43 states have return successors, (52), 42 states have call predecessors, (52), 43 states have call successors, (52) [2022-01-10 06:34:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 481 transitions. [2022-01-10 06:34:05,150 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 481 transitions. Word has length 50 [2022-01-10 06:34:05,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:05,151 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 481 transitions. [2022-01-10 06:34:05,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:34:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 481 transitions. [2022-01-10 06:34:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 06:34:05,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:05,151 INFO L514 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] [2022-01-10 06:34:05,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:05,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:05,359 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:05,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash 920704793, now seen corresponding path program 1 times [2022-01-10 06:34:05,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:05,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045390505] [2022-01-10 06:34:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:05,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:05,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:05,360 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:05,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:34:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:05,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:34:05,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:05,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:05,456 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:05,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045390505] [2022-01-10 06:34:05,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045390505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:05,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:05,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:34:05,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073864870] [2022-01-10 06:34:05,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:05,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:34:05,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:05,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:34:05,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:34:05,457 INFO L87 Difference]: Start difference. First operand 400 states and 481 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:34:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:05,499 INFO L93 Difference]: Finished difference Result 751 states and 911 transitions. [2022-01-10 06:34:05,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:34:05,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-01-10 06:34:05,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:05,502 INFO L225 Difference]: With dead ends: 751 [2022-01-10 06:34:05,502 INFO L226 Difference]: Without dead ends: 402 [2022-01-10 06:34:05,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:05,503 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 15 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:05,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 264 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:05,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-01-10 06:34:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 399. [2022-01-10 06:34:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 311 states have (on average 1.2282958199356913) internal successors, (382), 330 states have internal predecessors, (382), 43 states have call successors, (43), 39 states have call predecessors, (43), 44 states have return successors, (52), 42 states have call predecessors, (52), 43 states have call successors, (52) [2022-01-10 06:34:05,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 477 transitions. [2022-01-10 06:34:05,520 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 477 transitions. Word has length 50 [2022-01-10 06:34:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:05,520 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 477 transitions. [2022-01-10 06:34:05,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:34:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 477 transitions. [2022-01-10 06:34:05,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 06:34:05,521 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:05,521 INFO L514 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] [2022-01-10 06:34:05,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:05,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:05,728 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1139559511, now seen corresponding path program 1 times [2022-01-10 06:34:05,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:05,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757267587] [2022-01-10 06:34:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:05,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:05,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:05,730 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:05,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 06:34:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:05,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:34:05,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:05,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:05,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:05,845 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:05,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757267587] [2022-01-10 06:34:05,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757267587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:05,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:05,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:34:05,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098604291] [2022-01-10 06:34:05,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:05,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:05,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:05,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:05,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:05,846 INFO L87 Difference]: Start difference. First operand 399 states and 477 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:34:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:05,874 INFO L93 Difference]: Finished difference Result 719 states and 869 transitions. [2022-01-10 06:34:05,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:05,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-01-10 06:34:05,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:05,875 INFO L225 Difference]: With dead ends: 719 [2022-01-10 06:34:05,876 INFO L226 Difference]: Without dead ends: 371 [2022-01-10 06:34:05,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:05,877 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 12 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:05,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 344 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:05,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-01-10 06:34:05,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2022-01-10 06:34:05,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 291 states have (on average 1.2233676975945018) internal successors, (356), 308 states have internal predecessors, (356), 40 states have call successors, (40), 36 states have call predecessors, (40), 39 states have return successors, (47), 38 states have call predecessors, (47), 40 states have call successors, (47) [2022-01-10 06:34:05,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 443 transitions. [2022-01-10 06:34:05,889 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 443 transitions. Word has length 50 [2022-01-10 06:34:05,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:05,889 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 443 transitions. [2022-01-10 06:34:05,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:34:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 443 transitions. [2022-01-10 06:34:05,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 06:34:05,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:05,890 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:34:05,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:06,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:06,096 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:06,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:06,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1869867840, now seen corresponding path program 1 times [2022-01-10 06:34:06,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:06,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094717251] [2022-01-10 06:34:06,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:06,097 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:06,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:06,100 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:06,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 06:34:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:06,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:34:06,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:06,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:06,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:06,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094717251] [2022-01-10 06:34:06,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094717251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:06,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:06,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:34:06,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368972045] [2022-01-10 06:34:06,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:06,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:34:06,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:06,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:34:06,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:34:06,273 INFO L87 Difference]: Start difference. First operand 371 states and 443 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 06:34:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:06,337 INFO L93 Difference]: Finished difference Result 1099 states and 1342 transitions. [2022-01-10 06:34:06,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:34:06,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2022-01-10 06:34:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:06,340 INFO L225 Difference]: With dead ends: 1099 [2022-01-10 06:34:06,340 INFO L226 Difference]: Without dead ends: 735 [2022-01-10 06:34:06,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:34:06,341 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 55 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:06,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 361 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:06,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-01-10 06:34:06,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 733. [2022-01-10 06:34:06,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 574 states have (on average 1.1986062717770034) internal successors, (688), 607 states have internal predecessors, (688), 80 states have call successors, (80), 72 states have call predecessors, (80), 78 states have return successors, (101), 76 states have call predecessors, (101), 80 states have call successors, (101) [2022-01-10 06:34:06,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 869 transitions. [2022-01-10 06:34:06,371 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 869 transitions. Word has length 79 [2022-01-10 06:34:06,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:06,371 INFO L470 AbstractCegarLoop]: Abstraction has 733 states and 869 transitions. [2022-01-10 06:34:06,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 06:34:06,371 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 869 transitions. [2022-01-10 06:34:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 06:34:06,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:06,375 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:34:06,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:06,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:06,582 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:06,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash 904144084, now seen corresponding path program 1 times [2022-01-10 06:34:06,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:06,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811957803] [2022-01-10 06:34:06,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:06,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:06,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:06,584 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:06,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 06:34:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:06,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:34:06,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:06,795 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:06,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:06,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:06,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811957803] [2022-01-10 06:34:06,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811957803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:06,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:06,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 06:34:06,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408984228] [2022-01-10 06:34:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:06,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 06:34:06,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:06,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 06:34:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-10 06:34:06,796 INFO L87 Difference]: Start difference. First operand 733 states and 869 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-01-10 06:34:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:07,199 INFO L93 Difference]: Finished difference Result 1777 states and 2147 transitions. [2022-01-10 06:34:07,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:34:07,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 81 [2022-01-10 06:34:07,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:07,203 INFO L225 Difference]: With dead ends: 1777 [2022-01-10 06:34:07,203 INFO L226 Difference]: Without dead ends: 1139 [2022-01-10 06:34:07,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-01-10 06:34:07,204 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 252 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:07,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 554 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 06:34:07,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-01-10 06:34:07,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1090. [2022-01-10 06:34:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 844 states have (on average 1.1729857819905214) internal successors, (990), 890 states have internal predecessors, (990), 120 states have call successors, (120), 114 states have call predecessors, (120), 125 states have return successors, (151), 116 states have call predecessors, (151), 120 states have call successors, (151) [2022-01-10 06:34:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1261 transitions. [2022-01-10 06:34:07,238 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1261 transitions. Word has length 81 [2022-01-10 06:34:07,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:07,238 INFO L470 AbstractCegarLoop]: Abstraction has 1090 states and 1261 transitions. [2022-01-10 06:34:07,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-01-10 06:34:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1261 transitions. [2022-01-10 06:34:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 06:34:07,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:07,239 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:34:07,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:07,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:07,446 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:07,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:07,447 INFO L85 PathProgramCache]: Analyzing trace with hash 486467804, now seen corresponding path program 1 times [2022-01-10 06:34:07,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:07,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524458488] [2022-01-10 06:34:07,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:07,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:07,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:07,448 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:07,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 06:34:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:07,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:34:07,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:07,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 06:34:07,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:34:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 06:34:07,920 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:07,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524458488] [2022-01-10 06:34:07,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524458488] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:34:07,920 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:34:07,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2022-01-10 06:34:07,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604803720] [2022-01-10 06:34:07,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:34:07,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 06:34:07,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:07,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 06:34:07,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:34:07,922 INFO L87 Difference]: Start difference. First operand 1090 states and 1261 transitions. Second operand has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 7 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2022-01-10 06:34:08,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:08,744 INFO L93 Difference]: Finished difference Result 2995 states and 3600 transitions. [2022-01-10 06:34:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-10 06:34:08,745 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 7 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) Word has length 83 [2022-01-10 06:34:08,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:08,751 INFO L225 Difference]: With dead ends: 2995 [2022-01-10 06:34:08,751 INFO L226 Difference]: Without dead ends: 2000 [2022-01-10 06:34:08,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 156 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=628, Unknown=0, NotChecked=0, Total=812 [2022-01-10 06:34:08,753 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 623 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:08,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [631 Valid, 1236 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 06:34:08,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2022-01-10 06:34:08,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1800. [2022-01-10 06:34:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1394 states have (on average 1.1800573888091823) internal successors, (1645), 1470 states have internal predecessors, (1645), 196 states have call successors, (196), 188 states have call predecessors, (196), 209 states have return successors, (282), 194 states have call predecessors, (282), 196 states have call successors, (282) [2022-01-10 06:34:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2123 transitions. [2022-01-10 06:34:08,815 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2123 transitions. Word has length 83 [2022-01-10 06:34:08,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:08,815 INFO L470 AbstractCegarLoop]: Abstraction has 1800 states and 2123 transitions. [2022-01-10 06:34:08,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 7 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2022-01-10 06:34:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2123 transitions. [2022-01-10 06:34:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 06:34:08,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:08,816 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:34:08,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:09,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:09,024 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:09,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1507676902, now seen corresponding path program 1 times [2022-01-10 06:34:09,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:09,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657877027] [2022-01-10 06:34:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:09,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:09,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:09,025 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:09,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 06:34:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:09,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:34:09,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 06:34:09,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:34:09,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 06:34:09,357 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:09,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657877027] [2022-01-10 06:34:09,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657877027] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-10 06:34:09,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 06:34:09,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-01-10 06:34:09,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229832578] [2022-01-10 06:34:09,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:09,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:34:09,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:09,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:34:09,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-10 06:34:09,358 INFO L87 Difference]: Start difference. First operand 1800 states and 2123 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-10 06:34:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:09,492 INFO L93 Difference]: Finished difference Result 3707 states and 4516 transitions. [2022-01-10 06:34:09,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 06:34:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 83 [2022-01-10 06:34:09,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:09,499 INFO L225 Difference]: With dead ends: 3707 [2022-01-10 06:34:09,499 INFO L226 Difference]: Without dead ends: 1914 [2022-01-10 06:34:09,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:34:09,503 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 68 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:09,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 647 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2022-01-10 06:34:09,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1725. [2022-01-10 06:34:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1320 states have (on average 1.146969696969697) internal successors, (1514), 1395 states have internal predecessors, (1514), 196 states have call successors, (196), 188 states have call predecessors, (196), 208 states have return successors, (260), 194 states have call predecessors, (260), 196 states have call successors, (260) [2022-01-10 06:34:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 1970 transitions. [2022-01-10 06:34:09,565 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 1970 transitions. Word has length 83 [2022-01-10 06:34:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:09,565 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 1970 transitions. [2022-01-10 06:34:09,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-10 06:34:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 1970 transitions. [2022-01-10 06:34:09,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 06:34:09,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:09,566 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:34:09,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-01-10 06:34:09,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:09,773 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:09,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:09,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1934519910, now seen corresponding path program 1 times [2022-01-10 06:34:09,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:09,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414621190] [2022-01-10 06:34:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:09,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:09,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:09,775 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:09,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 06:34:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:09,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:34:09,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 06:34:09,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:34:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 06:34:10,202 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:10,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414621190] [2022-01-10 06:34:10,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414621190] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:34:10,203 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:34:10,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2022-01-10 06:34:10,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367599502] [2022-01-10 06:34:10,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:34:10,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 06:34:10,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:10,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 06:34:10,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-01-10 06:34:10,204 INFO L87 Difference]: Start difference. First operand 1725 states and 1970 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 14 states have internal predecessors, (119), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-01-10 06:34:10,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:10,988 INFO L93 Difference]: Finished difference Result 4466 states and 5332 transitions. [2022-01-10 06:34:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-10 06:34:10,988 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 14 states have internal predecessors, (119), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 83 [2022-01-10 06:34:10,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:10,998 INFO L225 Difference]: With dead ends: 4466 [2022-01-10 06:34:10,999 INFO L226 Difference]: Without dead ends: 2834 [2022-01-10 06:34:11,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2022-01-10 06:34:11,004 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 723 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:11,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 835 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 06:34:11,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-01-10 06:34:11,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2419. [2022-01-10 06:34:11,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 1852 states have (on average 1.1603671706263499) internal successors, (2149), 1946 states have internal predecessors, (2149), 284 states have call successors, (284), 278 states have call predecessors, (284), 282 states have return successors, (404), 261 states have call predecessors, (404), 284 states have call successors, (404) [2022-01-10 06:34:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 2837 transitions. [2022-01-10 06:34:11,096 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 2837 transitions. Word has length 83 [2022-01-10 06:34:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:11,096 INFO L470 AbstractCegarLoop]: Abstraction has 2419 states and 2837 transitions. [2022-01-10 06:34:11,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 14 states have internal predecessors, (119), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-01-10 06:34:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 2837 transitions. [2022-01-10 06:34:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-10 06:34:11,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:11,102 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 06:34:11,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:11,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:11,309 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:11,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:11,310 INFO L85 PathProgramCache]: Analyzing trace with hash 636257720, now seen corresponding path program 1 times [2022-01-10 06:34:11,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:11,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998338745] [2022-01-10 06:34:11,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:11,310 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:11,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:11,312 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:11,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 06:34:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:11,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:34:11,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-10 06:34:11,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:11,594 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:11,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998338745] [2022-01-10 06:34:11,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998338745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:11,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:11,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:34:11,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318355366] [2022-01-10 06:34:11,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:11,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:11,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:11,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:11,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:11,596 INFO L87 Difference]: Start difference. First operand 2419 states and 2837 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:34:11,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:11,623 INFO L93 Difference]: Finished difference Result 2665 states and 3111 transitions. [2022-01-10 06:34:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:11,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 205 [2022-01-10 06:34:11,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:11,625 INFO L225 Difference]: With dead ends: 2665 [2022-01-10 06:34:11,625 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:34:11,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:11,629 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 36 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:11,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 315 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:34:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:34:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:34:11,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 205 [2022-01-10 06:34:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:11,630 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:34:11,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:34:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:34:11,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:34:11,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:34:11,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:11,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:11,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:34:14,477 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 88 94) no Hoare annotation was computed. [2022-01-10 06:34:14,477 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 88 94) the Hoare annotation is: true [2022-01-10 06:34:14,478 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= |old(~methaneLevelCritical~0)| (_ bv0 32)))) (let ((.cse4 (not .cse7)) (.cse8 (not (= (_ bv1 32) ~pumpRunning~0))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse6 (not .cse2))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse4 .cse5) (or .cse1 .cse3 .cse6 .cse7 .cse8) (or .cse1 .cse2 .cse3 .cse4 .cse8) (or .cse0 .cse1 .cse6 .cse7 .cse5) (or .cse0 .cse1 .cse3 .cse6 .cse7)))) [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 870 899) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L861 garLoopResultBuilder]: At program point L895(lines 870 899) the Hoare annotation is: true [2022-01-10 06:34:14,478 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 870 899) the Hoare annotation is: true [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L891(line 891) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L884(lines 884 888) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L861 garLoopResultBuilder]: At program point L884-1(lines 884 888) the Hoare annotation is: true [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L881(line 881) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L861 garLoopResultBuilder]: At program point L880-2(lines 880 894) the Hoare annotation is: true [2022-01-10 06:34:14,478 INFO L861 garLoopResultBuilder]: At program point L876(line 876) the Hoare annotation is: true [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L876-1(line 876) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 143) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L337(lines 337 357) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point L969(line 969) no Hoare annotation was computed. [2022-01-10 06:34:14,478 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 64 87) no Hoare annotation was computed. [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L160(lines 155 162) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 (and (= |timeShift_processEnvironment_~tmp~1#1| (_ bv1 32)) (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~1#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) .cse0 (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2022-01-10 06:34:14,479 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 251) no Hoare annotation was computed. [2022-01-10 06:34:14,479 INFO L858 garLoopResultBuilder]: For program point L247-2(lines 247 251) no Hoare annotation was computed. [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L437(lines 432 440) the Hoare annotation is: (let ((.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse7 (= |timeShift_getWaterLevel_#res#1| (_ bv1 32))) (.cse4 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse5 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~5#1|)) (.cse8 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse9 (not (= |old(~pumpRunning~0)| (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse8)) (or .cse0 (and (= |timeShift_processEnvironment_~tmp~1#1| (_ bv1 32)) (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~1#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) .cse5 (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32)) .cse6 .cse7) .cse1 .cse9) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 (and (= (_ bv1 32) ~pumpRunning~0) .cse5 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) .cse8)) (or .cse0 .cse1 .cse2 .cse9))) [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L970(lines 965 972) the Hoare annotation is: (let ((.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (or .cse2 .cse0 .cse1))) [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L136(line 136) the Hoare annotation is: (let ((.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (or .cse2 .cse0 .cse1))) [2022-01-10 06:34:14,479 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 353) no Hoare annotation was computed. [2022-01-10 06:34:14,479 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 356) no Hoare annotation was computed. [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L343-1(lines 328 360) the Hoare annotation is: (let ((.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse14 (= ~systemActive~0 (_ bv1 32)))) (let ((.cse7 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse10 (not (= |timeShift___utac_acc__Specification3_spec__1_~tmp~5#1| (_ bv0 32)))) (.cse6 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse13 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse12 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse5 (not .cse14)) (.cse16 (= |timeShift_processEnvironment_~tmp~1#1| (_ bv1 32))) (.cse17 (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~1#1|)) (.cse18 (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~5#1|)) (.cse19 (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32))) (.cse1 (= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1| (_ bv1 32))) (.cse20 (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= |timeShift_getWaterLevel_#res#1| (_ bv1 32))) (.cse8 (not .cse11)) (.cse15 (not (= |old(~pumpRunning~0)| (_ bv1 32))))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 .cse7 .cse8) (or .cse5 (and .cse9 .cse10 .cse2) .cse11 .cse6 .cse7) (or .cse12 .cse5 (and .cse13 .cse14 .cse10 .cse4) .cse11 .cse6) (or .cse12 .cse5 .cse11 .cse15 (and .cse16 .cse17 .cse18 .cse9 .cse19 .cse20 .cse10 .cse2)) (or .cse12 .cse5 .cse6 (and .cse13 (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1|) .cse14 .cse0 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) .cse4) .cse8) (or .cse12 .cse5 (and .cse16 .cse17 .cse18 .cse9 .cse0 .cse19 .cse1 .cse20 .cse2 .cse3) .cse8 .cse15)))) [2022-01-10 06:34:14,479 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 372) no Hoare annotation was computed. [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L335(line 335) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse2 .cse3)) (or .cse4 .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) .cse3)) (or .cse4 (and (= |timeShift_processEnvironment_~tmp~1#1| (_ bv1 32)) (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~1#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32)) .cse2) .cse0 (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L368-2(lines 364 375) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32))) (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:34:14,479 INFO L858 garLoopResultBuilder]: For program point L335-1(line 335) no Hoare annotation was computed. [2022-01-10 06:34:14,479 INFO L854 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (and (= (_ bv0 32) ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point L141-1(lines 122 146) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse2 .cse3)) (or .cse4 .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) .cse3)) (or .cse4 (and (= |timeShift_processEnvironment_~tmp~1#1| (_ bv1 32)) (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~1#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32)) .cse2) .cse0 (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2022-01-10 06:34:14,480 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point L253(lines 238 256) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 .cse0 (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~1#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32))) (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point L179(lines 174 182) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) (= |timeShift_isPumpRunning_#res#1| (_ bv1 32)) (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1|) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~5#1|) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (= ~waterLevel~0 |old(~waterLevel~0)|)) .cse2) (or .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 64 87) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (and (= (_ bv0 32) ~pumpRunning~0) .cse4)) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse3) (or .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) .cse4) (not (= |old(~pumpRunning~0)| (_ bv1 32))))))) [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point L460(lines 455 463) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 .cse0 (and (= (_ bv1 32) ~pumpRunning~0) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32))) (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2022-01-10 06:34:14,480 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 64 87) no Hoare annotation was computed. [2022-01-10 06:34:14,480 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2022-01-10 06:34:14,480 INFO L858 garLoopResultBuilder]: For program point L68-1(lines 67 86) no Hoare annotation was computed. [2022-01-10 06:34:14,480 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 138) no Hoare annotation was computed. [2022-01-10 06:34:14,480 INFO L861 garLoopResultBuilder]: At program point L320(lines 261 324) the Hoare annotation is: true [2022-01-10 06:34:14,480 INFO L861 garLoopResultBuilder]: At program point L960(lines 941 963) the Hoare annotation is: true [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point L283(line 283) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)) (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1))) [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point L498(lines 493 501) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:14,480 INFO L854 garLoopResultBuilder]: At program point L490(lines 486 492) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:14,481 INFO L854 garLoopResultBuilder]: At program point L928(lines 924 930) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L854 garLoopResultBuilder]: At program point L317(lines 270 318) the Hoare annotation is: false [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L272(lines 271 316) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 312) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L854 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2))) [2022-01-10 06:34:14,481 INFO L854 garLoopResultBuilder]: At program point L483(lines 479 485) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L854 garLoopResultBuilder]: At program point L314(lines 271 316) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)) (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1))) [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 287) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L281-1(lines 281 287) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L861 garLoopResultBuilder]: At program point L938(lines 931 940) the Hoare annotation is: true [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L951(lines 951 958) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L951-2(lines 951 958) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2022-01-10 06:34:14,481 INFO L854 garLoopResultBuilder]: At program point L307-2(lines 301 312) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2))) [2022-01-10 06:34:14,481 INFO L858 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 96 120) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) .cse2))) [2022-01-10 06:34:14,482 INFO L854 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1))) [2022-01-10 06:34:14,482 INFO L854 garLoopResultBuilder]: At program point L234(lines 219 237) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| (_ bv1 32)) (= (_ bv1 32) |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| (_ bv0 32)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv0 32)) .cse2)) (or .cse0 (and (= (_ bv0 32) |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| (_ bv0 32)) .cse2) .cse1 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 112) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L100(lines 100 117) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 232) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L228-2(lines 228 232) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 96 120) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L854 garLoopResultBuilder]: At program point L152(lines 147 154) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or (and (= (_ bv1 32) ~pumpRunning~0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| (_ bv1 32)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| (_ bv1 32)) (= (_ bv1 32) |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| (_ bv0 32)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv0 32))) .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:34:14,482 INFO L854 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1))) [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 96 120) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L854 garLoopResultBuilder]: At program point L450(lines 441 454) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv0 32)) .cse2)) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) .cse2)))) [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L858 garLoopResultBuilder]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2022-01-10 06:34:14,482 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 (not (= (_ bv1 32) ~pumpRunning~0)) .cse1) (or (not (= (_ bv0 32) ~pumpRunning~0)) .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1))) [2022-01-10 06:34:14,484 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:14,485 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:34:14,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:34:14 BoogieIcfgContainer [2022-01-10 06:34:14,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:34:14,510 INFO L158 Benchmark]: Toolchain (without parser) took 14282.30ms. Allocated memory was 177.2MB in the beginning and 343.9MB in the end (delta: 166.7MB). Free memory was 125.1MB in the beginning and 247.6MB in the end (delta: -122.5MB). Peak memory consumption was 142.7MB. Max. memory is 8.0GB. [2022-01-10 06:34:14,510 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:34:14,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.46ms. Allocated memory was 177.2MB in the beginning and 238.0MB in the end (delta: 60.8MB). Free memory was 124.8MB in the beginning and 200.3MB in the end (delta: -75.4MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-01-10 06:34:14,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.89ms. Allocated memory is still 238.0MB. Free memory was 200.3MB in the beginning and 197.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:34:14,510 INFO L158 Benchmark]: Boogie Preprocessor took 18.96ms. Allocated memory is still 238.0MB. Free memory was 197.7MB in the beginning and 196.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:34:14,510 INFO L158 Benchmark]: RCFGBuilder took 421.48ms. Allocated memory is still 238.0MB. Free memory was 196.1MB in the beginning and 178.3MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-01-10 06:34:14,511 INFO L158 Benchmark]: TraceAbstraction took 13357.38ms. Allocated memory was 238.0MB in the beginning and 343.9MB in the end (delta: 105.9MB). Free memory was 177.7MB in the beginning and 247.6MB in the end (delta: -69.9MB). Peak memory consumption was 134.6MB. Max. memory is 8.0GB. [2022-01-10 06:34:14,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 429.46ms. Allocated memory was 177.2MB in the beginning and 238.0MB in the end (delta: 60.8MB). Free memory was 124.8MB in the beginning and 200.3MB in the end (delta: -75.4MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.89ms. Allocated memory is still 238.0MB. Free memory was 200.3MB in the beginning and 197.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.96ms. Allocated memory is still 238.0MB. Free memory was 197.7MB in the beginning and 196.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 421.48ms. Allocated memory is still 238.0MB. Free memory was 196.1MB in the beginning and 178.3MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 13357.38ms. Allocated memory was 238.0MB in the beginning and 343.9MB in the end (delta: 105.9MB). Free memory was 177.7MB in the beginning and 247.6MB in the end (delta: -69.9MB). Peak memory consumption was 134.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 969]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2347 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2305 mSDsluCounter, 7080 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5019 mSDsCounter, 541 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2875 IncrementalHoareTripleChecker+Invalid, 3416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 541 mSolverCounterUnsat, 2061 mSDtfsCounter, 2875 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1416 GetRequests, 1275 SyntacticMatches, 5 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2419occurred in iteration=17, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 891 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 4369 PreInvPairs, 4454 NumberOfFragments, 1584 HoareAnnotationTreeSize, 4369 FomulaSimplifications, 370 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 40 FomulaSimplificationsInter, 2793 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1109 NumberOfCodeBlocks, 1109 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1337 ConstructedInterpolants, 0 QuantifiedInterpolants, 3072 SizeOfPredicates, 39 NumberOfNonLiveVariables, 3651 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 432/474 InterpolantCoveringCapability, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || (1bv32 == pumpRunning && waterLevel == \old(waterLevel)))) && (((!(2bv32 == \old(waterLevel)) || ((((((tmp == 1bv32 && 1bv32 == tmp___0) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 1bv32)) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || (\result == 0bv32 && 0bv32 == pumpRunning)) && (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) || (\result == 1bv32 && 0bv32 == pumpRunning)) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((((1bv32 == pumpRunning && \result == 1bv32) && waterLevel == tmp___0) && methaneLevelCritical == tmp) && waterLevel == \result) && waterLevel == \old(waterLevel))) || !(\old(pumpRunning) == 0bv32)) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || methaneLevelCritical == 0bv32) || !(\old(pumpRunning) == 0bv32))) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 1bv32)) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || ((1bv32 == pumpRunning && \result == 0bv32) && waterLevel == 1bv32)) || !(\old(pumpRunning) == 1bv32)) - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((((1bv32 == pumpRunning && 1bv32 == tmp___0) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 0bv32) && \result == 1bv32)) || !(\old(pumpRunning) == 1bv32)) - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || ((((\result == 1bv32 && 1bv32 == tmp___0) && tmp == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) && (((!(systemActive == 1bv32) || ((0bv32 == tmp___0 && \result == 0bv32) && 0bv32 == pumpRunning)) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32))) && (((!(2bv32 == \old(waterLevel)) || ((((((tmp == 1bv32 && 1bv32 == tmp___0) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 1bv32)) - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: (((systemActive == 1bv32 && waterLevel == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || (((1bv32 == pumpRunning && waterLevel == 2bv32) && systemActive == 1bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: (((((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || methaneLevelCritical == 0bv32) || !(\old(pumpRunning) == 0bv32)) && (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (((methaneLevelCritical == tmp && 0bv32 == pumpRunning) && \result == 1bv32) && waterLevel == \old(waterLevel)))) && (((!(2bv32 == \old(waterLevel)) || ((((((((tmp == 1bv32 && 1bv32 == tmp___0) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == tmp) && tmp == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && \result == 1bv32)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 1bv32))) && (((!(systemActive == 1bv32) || methaneLevelCritical == 0bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || (((1bv32 == pumpRunning && methaneLevelCritical == tmp) && waterLevel == \result) && waterLevel == \old(waterLevel)))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || methaneLevelCritical == 0bv32) || !(\old(pumpRunning) == 1bv32)) - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: ((((((((1bv32 == pumpRunning && \result == 1bv32) && tmp == 1bv32) && 1bv32 == tmp___0) && tmp == 0bv32) && \result == 0bv32) || !(systemActive == 1bv32)) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: ((((((((((((methaneLevelCritical == tmp && tmp___0 == 1bv32) && 0bv32 == pumpRunning) && \result == 1bv32) && waterLevel == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || !(methaneLevelCritical == 0bv32)) && ((((!(systemActive == 1bv32) || ((waterLevel == 1bv32 && !(tmp == 0bv32)) && 0bv32 == pumpRunning)) || methaneLevelCritical == 0bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((1bv32 == pumpRunning && systemActive == 1bv32) && !(tmp == 0bv32)) && waterLevel == \old(waterLevel))) || methaneLevelCritical == 0bv32) || !(\old(pumpRunning) == 0bv32))) && ((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || methaneLevelCritical == 0bv32) || !(\old(pumpRunning) == 1bv32)) || (((((((tmp == 1bv32 && 1bv32 == tmp___0) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 0bv32) && \result == 1bv32) && !(tmp == 0bv32)) && 0bv32 == pumpRunning))) && ((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || (((((1bv32 == pumpRunning && waterLevel == tmp___0) && systemActive == 1bv32) && methaneLevelCritical == tmp) && waterLevel == \result) && waterLevel == \old(waterLevel))) || !(methaneLevelCritical == 0bv32))) && ((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((((((((tmp == 1bv32 && 1bv32 == tmp___0) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == tmp) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && \result == 1bv32)) || !(methaneLevelCritical == 0bv32)) || !(\old(pumpRunning) == 1bv32)) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 1bv32))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 924]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: ((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (1bv32 == pumpRunning && waterLevel == 1bv32)) || !(\old(pumpRunning) == 1bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) RESULT: Ultimate proved your program to be correct! [2022-01-10 06:34:14,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...