/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_spec4_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:34:17,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:34:17,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:34:17,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:34:17,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:34:17,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:34:17,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:34:17,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:34:17,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:34:17,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:34:17,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:34:17,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:34:17,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:34:17,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:34:17,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:34:17,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:34:17,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:34:17,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:34:17,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:34:17,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:34:17,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:34:17,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:34:17,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:34:17,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:34:17,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:34:17,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:34:17,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:34:17,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:34:17,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:34:17,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:34:17,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:34:17,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:34:17,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:34:17,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:34:17,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:34:17,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:34:17,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:34:17,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:34:17,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:34:17,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:34:17,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:34:17,455 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 06:34:17,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:34:17,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:34:17,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:34:17,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:34:17,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:34:17,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:34:17,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:34:17,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:34:17,483 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:34:17,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:34:17,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:34:17,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:34:17,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:34:17,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:34:17,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:34:17,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:34:17,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:17,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:34:17,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:34:17,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:34:17,487 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:34:17,487 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:34:17,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:34:17,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:34:17,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:34:17,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:34:17,488 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:34:17,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:34:17,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:34:17,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:34:17,744 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:34:17,744 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:34:17,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product03.cil.c [2022-01-10 06:34:17,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7636a847/a5ea7bb4483540f5acee902196909339/FLAG53be84d54 [2022-01-10 06:34:18,310 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:34:18,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product03.cil.c [2022-01-10 06:34:18,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7636a847/a5ea7bb4483540f5acee902196909339/FLAG53be84d54 [2022-01-10 06:34:18,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7636a847/a5ea7bb4483540f5acee902196909339 [2022-01-10 06:34:18,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:34:18,799 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:34:18,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:18,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:34:18,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:34:18,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48452f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18, skipping insertion in model container [2022-01-10 06:34:18,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:34:18,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:19,029 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_spec4_product03.cil.c[1605,1618] [2022-01-10 06:34:19,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:19,158 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:34:19,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:19,178 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_spec4_product03.cil.c[1605,1618] [2022-01-10 06:34:19,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:19,269 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:34:19,284 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_spec4_product03.cil.c[1605,1618] [2022-01-10 06:34:19,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:19,360 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:34:19,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19 WrapperNode [2022-01-10 06:34:19,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:19,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:19,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:34:19,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:34:19,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,412 INFO L137 Inliner]: procedures = 52, calls = 146, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 186 [2022-01-10 06:34:19,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:19,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:34:19,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:34:19,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:34:19,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:34:19,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:34:19,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:34:19,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:34:19,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:19,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:34:19,489 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 06:34:19,491 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 06:34:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:34:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:34:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:34:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:34:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:34:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:34:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:34:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:34:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:34:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:34:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:34:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:34:19,639 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:34:19,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:34:19,972 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:34:19,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:34:19,978 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:34:19,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:19 BoogieIcfgContainer [2022-01-10 06:34:19,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:34:19,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:34:19,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:34:19,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:34:19,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:34:18" (1/3) ... [2022-01-10 06:34:19,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34af07b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:19, skipping insertion in model container [2022-01-10 06:34:19,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (2/3) ... [2022-01-10 06:34:19,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34af07b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:19, skipping insertion in model container [2022-01-10 06:34:19,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:19" (3/3) ... [2022-01-10 06:34:19,993 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product03.cil.c [2022-01-10 06:34:19,997 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:34:19,998 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:34:20,058 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:34:20,067 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 06:34:20,067 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:34:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-10 06:34:20,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 06:34:20,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:20,096 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:20,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash -192528358, now seen corresponding path program 1 times [2022-01-10 06:34:20,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:20,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810835786] [2022-01-10 06:34:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:20,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:20,119 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 06:34:20,126 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 06:34:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:20,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:34:20,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:20,261 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 06:34:20,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:20,261 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:20,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810835786] [2022-01-10 06:34:20,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810835786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:20,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:20,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:20,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868832624] [2022-01-10 06:34:20,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:20,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:34:20,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:20,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:34:20,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:20,291 INFO L87 Difference]: Start difference. First operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,312 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2022-01-10 06:34:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:34:20,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-10 06:34:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,320 INFO L225 Difference]: With dead ends: 116 [2022-01-10 06:34:20,320 INFO L226 Difference]: Without dead ends: 53 [2022-01-10 06:34:20,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 06:34:20,325 INFO L933 BasicCegarLoop]: 76 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, 76 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 06:34:20,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-01-10 06:34:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-01-10 06:34:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.302325581395349) internal successors, (56), 46 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 06:34:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2022-01-10 06:34:20,358 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 19 [2022-01-10 06:34:20,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,358 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2022-01-10 06:34:20,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2022-01-10 06:34:20,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 06:34:20,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,360 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] [2022-01-10 06:34:20,374 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 06:34:20,569 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 06:34:20,570 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:20,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1987482606, now seen corresponding path program 1 times [2022-01-10 06:34:20,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:20,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628308530] [2022-01-10 06:34:20,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:20,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:20,573 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 06:34:20,574 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 06:34:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:20,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:20,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:20,731 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 06:34:20,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:20,732 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:20,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628308530] [2022-01-10 06:34:20,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628308530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:20,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:20,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:20,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845360014] [2022-01-10 06:34:20,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:20,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:20,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:20,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:20,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:20,740 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,761 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2022-01-10 06:34:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:20,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 06:34:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,768 INFO L225 Difference]: With dead ends: 68 [2022-01-10 06:34:20,769 INFO L226 Difference]: Without dead ends: 44 [2022-01-10 06:34:20,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 06:34:20,773 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 87 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 06:34:20,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-01-10 06:34:20,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-01-10 06:34:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 40 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:34:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2022-01-10 06:34:20,787 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 20 [2022-01-10 06:34:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,787 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2022-01-10 06:34:20,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2022-01-10 06:34:20,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 06:34:20,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,788 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] [2022-01-10 06:34:20,799 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 06:34:20,998 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 06:34:20,999 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:20,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:20,999 INFO L85 PathProgramCache]: Analyzing trace with hash -296029766, now seen corresponding path program 1 times [2022-01-10 06:34:21,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833180443] [2022-01-10 06:34:21,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,002 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 06:34:21,004 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 06:34:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,117 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 06:34:21,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,117 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833180443] [2022-01-10 06:34:21,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833180443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:21,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304949094] [2022-01-10 06:34:21,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:21,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:21,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:21,123 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:21,150 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-01-10 06:34:21,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:21,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-01-10 06:34:21,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:21,153 INFO L225 Difference]: With dead ends: 117 [2022-01-10 06:34:21,154 INFO L226 Difference]: Without dead ends: 80 [2022-01-10 06:34:21,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 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 06:34:21,155 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 35 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:21,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 102 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:21,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-01-10 06:34:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2022-01-10 06:34:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-10 06:34:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-01-10 06:34:21,165 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2022-01-10 06:34:21,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:21,165 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-01-10 06:34:21,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,166 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-01-10 06:34:21,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 06:34:21,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:21,167 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 06:34:21,178 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 06:34:21,375 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 06:34:21,376 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:21,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1716566345, now seen corresponding path program 1 times [2022-01-10 06:34:21,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349375390] [2022-01-10 06:34:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,378 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 06:34:21,380 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 06:34:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,529 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 06:34:21,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,530 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349375390] [2022-01-10 06:34:21,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349375390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:34:21,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768298160] [2022-01-10 06:34:21,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:21,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:21,532 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:21,577 INFO L93 Difference]: Finished difference Result 199 states and 269 transitions. [2022-01-10 06:34:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:21,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-01-10 06:34:21,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:21,580 INFO L225 Difference]: With dead ends: 199 [2022-01-10 06:34:21,580 INFO L226 Difference]: Without dead ends: 131 [2022-01-10 06:34:21,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 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 06:34:21,582 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 30 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:21,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 204 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-01-10 06:34:21,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-01-10 06:34:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 115 states have internal predecessors, (144), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (14), 10 states have call predecessors, (14), 12 states have call successors, (14) [2022-01-10 06:34:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 170 transitions. [2022-01-10 06:34:21,598 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 170 transitions. Word has length 25 [2022-01-10 06:34:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:21,599 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 170 transitions. [2022-01-10 06:34:21,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 170 transitions. [2022-01-10 06:34:21,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 06:34:21,600 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:21,600 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] [2022-01-10 06:34:21,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:21,817 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 06:34:21,818 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:21,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:21,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1833945412, now seen corresponding path program 1 times [2022-01-10 06:34:21,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913078209] [2022-01-10 06:34:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,821 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 06:34:21,823 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 06:34:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,929 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 06:34:21,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,930 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913078209] [2022-01-10 06:34:21,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913078209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:21,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336192988] [2022-01-10 06:34:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:21,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:21,932 INFO L87 Difference]: Start difference. First operand 131 states and 170 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:21,947 INFO L93 Difference]: Finished difference Result 222 states and 292 transitions. [2022-01-10 06:34:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:21,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-10 06:34:21,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:21,950 INFO L225 Difference]: With dead ends: 222 [2022-01-10 06:34:21,950 INFO L226 Difference]: Without dead ends: 123 [2022-01-10 06:34:21,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 06:34:21,954 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:21,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-01-10 06:34:21,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-01-10 06:34:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 107 states have internal predecessors, (128), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-10 06:34:21,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2022-01-10 06:34:21,983 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 27 [2022-01-10 06:34:21,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:21,984 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2022-01-10 06:34:21,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2022-01-10 06:34:21,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 06:34:21,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:21,985 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] [2022-01-10 06:34:21,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:22,185 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 06:34:22,186 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash 957939555, now seen corresponding path program 1 times [2022-01-10 06:34:22,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:22,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230971225] [2022-01-10 06:34:22,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:22,187 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:22,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:22,189 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 06:34:22,191 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 06:34:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:22,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:34:22,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:22,383 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 06:34:22,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:22,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:22,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230971225] [2022-01-10 06:34:22,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230971225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:22,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:22,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:34:22,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871022077] [2022-01-10 06:34:22,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:22,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:34:22,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:22,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:34:22,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:34:22,394 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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 06:34:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:22,579 INFO L93 Difference]: Finished difference Result 184 states and 230 transitions. [2022-01-10 06:34:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:34:22,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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 29 [2022-01-10 06:34:22,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:22,581 INFO L225 Difference]: With dead ends: 184 [2022-01-10 06:34:22,581 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:34:22,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:34:22,586 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 86 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:22,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 328 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:34:22,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:34:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:34:22,588 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 06:34:22,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:34:22,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-01-10 06:34:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:22,588 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:34:22,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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 06:34:22,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:34:22,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:34:22,591 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:34:22,603 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 06:34:22,803 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 06:34:22,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:34:23,343 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 692 703) the Hoare annotation is: true [2022-01-10 06:34:23,343 INFO L858 garLoopResultBuilder]: For program point L696-1(lines 692 703) no Hoare annotation was computed. [2022-01-10 06:34:23,343 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 692 703) no Hoare annotation was computed. [2022-01-10 06:34:23,343 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 773 802) no Hoare annotation was computed. [2022-01-10 06:34:23,343 INFO L861 garLoopResultBuilder]: At program point L798(lines 773 802) the Hoare annotation is: true [2022-01-10 06:34:23,343 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 773 802) the Hoare annotation is: true [2022-01-10 06:34:23,344 INFO L858 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2022-01-10 06:34:23,344 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2022-01-10 06:34:23,344 INFO L861 garLoopResultBuilder]: At program point L787-1(lines 787 791) the Hoare annotation is: true [2022-01-10 06:34:23,344 INFO L858 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2022-01-10 06:34:23,344 INFO L861 garLoopResultBuilder]: At program point L783-2(lines 783 797) the Hoare annotation is: true [2022-01-10 06:34:23,344 INFO L861 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: true [2022-01-10 06:34:23,344 INFO L858 garLoopResultBuilder]: For program point L779-1(line 779) no Hoare annotation was computed. [2022-01-10 06:34:23,344 INFO L854 garLoopResultBuilder]: At program point L609(lines 604 612) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0)))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0) (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:23,344 INFO L854 garLoopResultBuilder]: At program point L574(lines 570 576) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1))) [2022-01-10 06:34:23,344 INFO L858 garLoopResultBuilder]: For program point L758(lines 758 764) no Hoare annotation was computed. [2022-01-10 06:34:23,345 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-01-10 06:34:23,345 INFO L858 garLoopResultBuilder]: For program point L754(lines 754 767) no Hoare annotation was computed. [2022-01-10 06:34:23,345 INFO L854 garLoopResultBuilder]: At program point L754-1(lines 746 770) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| (_ bv2 32)) .cse1)) (or .cse0 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| (_ bv1 32)) (= |timeShift_getWaterLevel_#res#1| (_ bv1 32)) .cse1) (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:23,345 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 546 569) no Hoare annotation was computed. [2022-01-10 06:34:23,345 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 549 568) no Hoare annotation was computed. [2022-01-10 06:34:23,345 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 676) no Hoare annotation was computed. [2022-01-10 06:34:23,345 INFO L854 garLoopResultBuilder]: At program point L672-2(lines 668 679) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0)))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0) (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:23,345 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0)))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0) (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:23,345 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 546 569) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1))) [2022-01-10 06:34:23,345 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 557 563) no Hoare annotation was computed. [2022-01-10 06:34:23,345 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 546 569) no Hoare annotation was computed. [2022-01-10 06:34:23,346 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-01-10 06:34:23,346 INFO L854 garLoopResultBuilder]: At program point L741(lines 736 744) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) .cse1)) (or .cse0 (and (= |timeShift_getWaterLevel_#res#1| (_ bv1 32)) .cse1) (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:23,346 INFO L854 garLoopResultBuilder]: At program point L514-2(lines 508 521) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1))) [2022-01-10 06:34:23,346 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 504) no Hoare annotation was computed. [2022-01-10 06:34:23,346 INFO L858 garLoopResultBuilder]: For program point L498-1(lines 498 504) no Hoare annotation was computed. [2022-01-10 06:34:23,346 INFO L854 garLoopResultBuilder]: At program point L523(lines 478 525) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1))) [2022-01-10 06:34:23,346 INFO L854 garLoopResultBuilder]: At program point L490(line 490) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1))) [2022-01-10 06:34:23,346 INFO L861 garLoopResultBuilder]: At program point L841(lines 834 843) the Hoare annotation is: true [2022-01-10 06:34:23,346 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:34:23,346 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:34:23,347 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:34:23,347 INFO L858 garLoopResultBuilder]: For program point L854(lines 854 861) no Hoare annotation was computed. [2022-01-10 06:34:23,347 INFO L858 garLoopResultBuilder]: For program point L854-2(lines 854 861) no Hoare annotation was computed. [2022-01-10 06:34:23,347 INFO L854 garLoopResultBuilder]: At program point L590(lines 585 592) the Hoare annotation is: false [2022-01-10 06:34:23,347 INFO L854 garLoopResultBuilder]: At program point L458(lines 453 461) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:23,347 INFO L854 garLoopResultBuilder]: At program point L450(lines 446 452) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:23,347 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:34:23,347 INFO L858 garLoopResultBuilder]: For program point L479(lines 478 525) no Hoare annotation was computed. [2022-01-10 06:34:23,347 INFO L861 garLoopResultBuilder]: At program point L863(lines 844 866) the Hoare annotation is: true [2022-01-10 06:34:23,347 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2022-01-10 06:34:23,347 INFO L854 garLoopResultBuilder]: At program point L661(lines 649 663) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1))) [2022-01-10 06:34:23,348 INFO L854 garLoopResultBuilder]: At program point L500(line 500) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1))) [2022-01-10 06:34:23,348 INFO L861 garLoopResultBuilder]: At program point L529(lines 468 533) the Hoare annotation is: true [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 659) no Hoare annotation was computed. [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point L653-2(lines 653 659) no Hoare annotation was computed. [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 494) no Hoare annotation was computed. [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 488 494) no Hoare annotation was computed. [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 484) no Hoare annotation was computed. [2022-01-10 06:34:23,348 INFO L854 garLoopResultBuilder]: At program point L831(lines 827 833) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:23,348 INFO L854 garLoopResultBuilder]: At program point L443(lines 439 445) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:23,348 INFO L854 garLoopResultBuilder]: At program point L526(lines 477 527) the Hoare annotation is: false [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 520) no Hoare annotation was computed. [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 680 691) no Hoare annotation was computed. [2022-01-10 06:34:23,348 INFO L858 garLoopResultBuilder]: For program point L684-1(lines 680 691) no Hoare annotation was computed. [2022-01-10 06:34:23,349 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 680 691) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1))) [2022-01-10 06:34:23,351 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 06:34:23,358 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:34:23,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:34:23 BoogieIcfgContainer [2022-01-10 06:34:23,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:34:23,383 INFO L158 Benchmark]: Toolchain (without parser) took 4584.01ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 119.1MB in the beginning and 157.3MB in the end (delta: -38.2MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. [2022-01-10 06:34:23,383 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:34:23,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.78ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 118.9MB in the beginning and 184.5MB in the end (delta: -65.6MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2022-01-10 06:34:23,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.06ms. Allocated memory is still 226.5MB. Free memory was 184.5MB in the beginning and 181.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 06:34:23,384 INFO L158 Benchmark]: Boogie Preprocessor took 44.34ms. Allocated memory is still 226.5MB. Free memory was 181.9MB in the beginning and 180.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 06:34:23,384 INFO L158 Benchmark]: RCFGBuilder took 521.93ms. Allocated memory is still 226.5MB. Free memory was 180.3MB in the beginning and 165.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-10 06:34:23,385 INFO L158 Benchmark]: TraceAbstraction took 3400.82ms. Allocated memory is still 226.5MB. Free memory was 164.6MB in the beginning and 157.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-01-10 06:34:23,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 559.78ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 118.9MB in the beginning and 184.5MB in the end (delta: -65.6MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.06ms. Allocated memory is still 226.5MB. Free memory was 184.5MB in the beginning and 181.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.34ms. Allocated memory is still 226.5MB. Free memory was 181.9MB in the beginning and 180.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 521.93ms. Allocated memory is still 226.5MB. Free memory was 180.3MB in the beginning and 165.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3400.82ms. Allocated memory is still 226.5MB. Free memory was 164.6MB in the beginning and 157.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.9MB. 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: 54]: 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 5 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 843 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 490 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 353 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 169 PreInvPairs, 203 NumberOfFragments, 362 HoareAnnotationTreeSize, 169 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 28 FomulaSimplificationsInter, 680 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 9 NumberOfNonLiveVariables, 866 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: 736]: Loop Invariant Derived loop invariant: ((!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) || (\result == 2bv32 && waterLevel == \old(waterLevel))) && ((!(0bv32 == pumpRunning) || (\result == 1bv32 && waterLevel == \old(waterLevel))) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: (!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) && (!(0bv32 == pumpRunning) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 468]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 783]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 446]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 649]: Loop Invariant Derived loop invariant: ((~bvadd16(waterLevel, 4294967295bv32) == 1bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || ((waterLevel == 1bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 439]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 834]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: ((waterLevel == 2bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || ((waterLevel == 1bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: ((!(0bv32 == pumpRunning) || !(1bv32 == \old(waterLevel))) || waterLevel == \old(waterLevel)) && ((!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) || waterLevel == \old(waterLevel)) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) && (!(0bv32 == pumpRunning) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: ((!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) || ((\result == 2bv32 && tmp == 2bv32) && waterLevel == \old(waterLevel))) && ((!(0bv32 == pumpRunning) || ((tmp == 1bv32 && \result == 1bv32) && waterLevel == \old(waterLevel))) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: (!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) && (!(0bv32 == pumpRunning) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 06:34:23,438 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...