/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_spec5_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:35:43,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:35:43,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:35:43,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:35:43,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:35:43,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:35:43,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:35:43,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:35:43,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:35:43,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:35:43,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:35:43,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:35:43,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:35:43,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:35:43,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:35:43,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:35:43,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:35:43,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:35:43,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:35:43,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:35:43,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:35:43,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:35:43,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:35:43,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:35:43,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:35:43,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:35:43,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:35:43,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:35:43,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:35:43,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:35:43,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:35:43,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:35:43,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:35:43,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:35:43,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:35:43,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:35:43,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:35:43,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:35:43,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:35:43,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:35:43,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:35:43,568 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 06:35:43,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:35:43,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:35:43,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:35:43,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:35:43,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:35:43,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:35:43,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:35:43,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:35:43,591 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:35:43,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:35:43,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:35:43,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:35:43,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:35:43,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:35:43,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:35:43,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:35:43,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:35:43,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:35:43,594 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:35:43,594 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:35:43,594 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:35:43,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:35:43,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:35:43,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:35:43,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:35:43,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:35:43,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:35:43,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:35:43,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:35:43,814 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:35:43,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2022-01-10 06:35:43,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef1e874/889c918dd60e4512a88416af4423904a/FLAGca8de0dff [2022-01-10 06:35:44,242 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:35:44,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2022-01-10 06:35:44,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef1e874/889c918dd60e4512a88416af4423904a/FLAGca8de0dff [2022-01-10 06:35:44,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef1e874/889c918dd60e4512a88416af4423904a [2022-01-10 06:35:44,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:35:44,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:35:44,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:35:44,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:35:44,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:35:44,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4faca6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44, skipping insertion in model container [2022-01-10 06:35:44,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:35:44,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:35:44,565 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_spec5_product49.cil.c[6886,6899] [2022-01-10 06:35:44,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:35:44,647 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:35:44,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:35:44,686 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_spec5_product49.cil.c[6886,6899] [2022-01-10 06:35:44,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:35:44,702 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:35:44,717 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_spec5_product49.cil.c[6886,6899] [2022-01-10 06:35:44,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:35:44,753 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:35:44,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44 WrapperNode [2022-01-10 06:35:44,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:35:44,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:35:44,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:35:44,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:35:44,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,809 INFO L137 Inliner]: procedures = 59, calls = 157, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 250 [2022-01-10 06:35:44,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:35:44,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:35:44,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:35:44,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:35:44,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:35:44,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:35:44,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:35:44,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:35:44,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (1/1) ... [2022-01-10 06:35:44,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:35:44,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:35:44,912 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 06:35:44,936 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 06:35:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:35:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-01-10 06:35:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-01-10 06:35:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:35:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:35:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:35:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:35:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:35:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:35:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:35:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:35:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:35:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-01-10 06:35:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-01-10 06:35:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:35:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:35:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:35:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:35:45,016 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:35:45,017 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:35:45,307 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:35:45,312 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:35:45,312 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:35:45,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:35:45 BoogieIcfgContainer [2022-01-10 06:35:45,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:35:45,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:35:45,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:35:45,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:35:45,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:35:44" (1/3) ... [2022-01-10 06:35:45,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129bb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:35:45, skipping insertion in model container [2022-01-10 06:35:45,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:35:44" (2/3) ... [2022-01-10 06:35:45,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129bb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:35:45, skipping insertion in model container [2022-01-10 06:35:45,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:35:45" (3/3) ... [2022-01-10 06:35:45,321 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2022-01-10 06:35:45,325 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:35:45,325 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:35:45,366 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:35:45,371 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 06:35:45,371 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:35:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-10 06:35:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 06:35:45,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:45,412 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:45,413 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1747145324, now seen corresponding path program 1 times [2022-01-10 06:35:45,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:45,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051099110] [2022-01-10 06:35:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:45,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:45,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:45,463 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 06:35:45,499 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 06:35:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:45,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:35:45,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:45,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 06:35:45,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:45,651 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:45,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051099110] [2022-01-10 06:35:45,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051099110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:45,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:45,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:35:45,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339661980] [2022-01-10 06:35:45,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:45,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:35:45,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:45,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:35:45,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:35:45,685 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:35:45,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:45,727 INFO L93 Difference]: Finished difference Result 175 states and 238 transitions. [2022-01-10 06:35:45,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:35:45,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-01-10 06:35:45,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:45,736 INFO L225 Difference]: With dead ends: 175 [2022-01-10 06:35:45,736 INFO L226 Difference]: Without dead ends: 83 [2022-01-10 06:35:45,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 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 06:35:45,742 INFO L933 BasicCegarLoop]: 116 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, 116 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 06:35:45,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:45,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-01-10 06:35:45,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-01-10 06:35:45,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-01-10 06:35:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-01-10 06:35:45,801 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 32 [2022-01-10 06:35:45,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:45,801 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-01-10 06:35:45,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:35:45,802 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-01-10 06:35:45,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 06:35:45,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:45,803 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:45,817 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 06:35:46,010 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 06:35:46,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:46,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:46,012 INFO L85 PathProgramCache]: Analyzing trace with hash -757005905, now seen corresponding path program 1 times [2022-01-10 06:35:46,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:46,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462194936] [2022-01-10 06:35:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:46,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:46,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:46,014 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 06:35:46,015 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 06:35:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:46,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:35:46,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:46,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 06:35:46,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:46,161 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:46,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462194936] [2022-01-10 06:35:46,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462194936] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:46,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:46,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:35:46,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004978468] [2022-01-10 06:35:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:46,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:35:46,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:46,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:35:46,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:35:46,166 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:35:46,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:46,188 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2022-01-10 06:35:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:35:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-01-10 06:35:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:46,192 INFO L225 Difference]: With dead ends: 131 [2022-01-10 06:35:46,192 INFO L226 Difference]: Without dead ends: 74 [2022-01-10 06:35:46,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 06:35:46,194 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 12 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 172 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 06:35:46,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 172 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:46,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-10 06:35:46,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-01-10 06:35:46,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-10 06:35:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2022-01-10 06:35:46,199 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 33 [2022-01-10 06:35:46,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:46,199 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2022-01-10 06:35:46,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:35:46,200 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2022-01-10 06:35:46,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 06:35:46,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:46,200 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:46,209 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 06:35:46,401 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 06:35:46,401 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:46,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:46,402 INFO L85 PathProgramCache]: Analyzing trace with hash -372618950, now seen corresponding path program 1 times [2022-01-10 06:35:46,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:46,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678991164] [2022-01-10 06:35:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:46,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:46,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:46,404 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 06:35:46,406 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 06:35:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:46,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:35:46,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:46,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:35:46,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:46,534 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:46,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678991164] [2022-01-10 06:35:46,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678991164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:46,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:46,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:35:46,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118630527] [2022-01-10 06:35:46,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:46,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:35:46,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:46,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:35:46,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:35:46,536 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:35:46,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:46,542 INFO L93 Difference]: Finished difference Result 140 states and 183 transitions. [2022-01-10 06:35:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:35:46,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-01-10 06:35:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:46,544 INFO L225 Difference]: With dead ends: 140 [2022-01-10 06:35:46,544 INFO L226 Difference]: Without dead ends: 74 [2022-01-10 06:35:46,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 06:35:46,545 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 93 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 06:35:46,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:46,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-10 06:35:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-01-10 06:35:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-10 06:35:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2022-01-10 06:35:46,551 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 37 [2022-01-10 06:35:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:46,552 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2022-01-10 06:35:46,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:35:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2022-01-10 06:35:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 06:35:46,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:46,553 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:46,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-01-10 06:35:46,761 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 06:35:46,762 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash 273957597, now seen corresponding path program 1 times [2022-01-10 06:35:46,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:46,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561954154] [2022-01-10 06:35:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:46,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:46,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:46,764 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 06:35:46,766 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 06:35:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:46,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:35:46,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:35:46,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:46,969 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:46,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561954154] [2022-01-10 06:35:46,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561954154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:46,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:46,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:35:46,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757476523] [2022-01-10 06:35:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:46,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:35:46,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:46,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:35:46,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:35:46,971 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:35:47,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:47,152 INFO L93 Difference]: Finished difference Result 215 states and 275 transitions. [2022-01-10 06:35:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:35:47,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2022-01-10 06:35:47,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:47,155 INFO L225 Difference]: With dead ends: 215 [2022-01-10 06:35:47,155 INFO L226 Difference]: Without dead ends: 149 [2022-01-10 06:35:47,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:35:47,157 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 163 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:47,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 383 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:35:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-01-10 06:35:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 143. [2022-01-10 06:35:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 111 states have (on average 1.2702702702702702) internal successors, (141), 118 states have internal predecessors, (141), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19) [2022-01-10 06:35:47,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2022-01-10 06:35:47,168 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 47 [2022-01-10 06:35:47,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:47,169 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2022-01-10 06:35:47,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:35:47,169 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2022-01-10 06:35:47,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 06:35:47,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:47,170 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:47,185 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 06:35:47,379 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 06:35:47,379 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash -419087457, now seen corresponding path program 1 times [2022-01-10 06:35:47,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:47,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272504815] [2022-01-10 06:35:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:47,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:47,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:47,381 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 06:35:47,383 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 06:35:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:47,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:35:47,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:35:47,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:47,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:47,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272504815] [2022-01-10 06:35:47,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272504815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:47,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:47,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:35:47,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997834395] [2022-01-10 06:35:47,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:47,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:35:47,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:47,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:35:47,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:35:47,536 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:35:47,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:47,569 INFO L93 Difference]: Finished difference Result 284 states and 354 transitions. [2022-01-10 06:35:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:35:47,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-01-10 06:35:47,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:47,572 INFO L225 Difference]: With dead ends: 284 [2022-01-10 06:35:47,573 INFO L226 Difference]: Without dead ends: 149 [2022-01-10 06:35:47,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 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 06:35:47,576 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 10 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:47,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 368 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:47,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-01-10 06:35:47,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2022-01-10 06:35:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.263157894736842) internal successors, (144), 121 states have internal predecessors, (144), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19) [2022-01-10 06:35:47,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 179 transitions. [2022-01-10 06:35:47,603 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 179 transitions. Word has length 51 [2022-01-10 06:35:47,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:47,604 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 179 transitions. [2022-01-10 06:35:47,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:35:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 179 transitions. [2022-01-10 06:35:47,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 06:35:47,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:47,605 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:47,625 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 06:35:47,815 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 06:35:47,815 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:47,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2108031199, now seen corresponding path program 1 times [2022-01-10 06:35:47,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:47,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745511002] [2022-01-10 06:35:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:47,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:47,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:47,818 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 06:35:47,819 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 06:35:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:47,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:35:47,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:35:47,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:47,942 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:47,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745511002] [2022-01-10 06:35:47,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745511002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:47,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:47,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:35:47,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799273619] [2022-01-10 06:35:47,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:47,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:35:47,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:47,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:35:47,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:35:47,943 INFO L87 Difference]: Start difference. First operand 146 states and 179 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:35:47,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:47,962 INFO L93 Difference]: Finished difference Result 292 states and 364 transitions. [2022-01-10 06:35:47,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:35:47,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-01-10 06:35:47,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:47,964 INFO L225 Difference]: With dead ends: 292 [2022-01-10 06:35:47,964 INFO L226 Difference]: Without dead ends: 154 [2022-01-10 06:35:47,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:35:47,965 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 11 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:47,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 277 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:47,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-01-10 06:35:47,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2022-01-10 06:35:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 123 states have internal predecessors, (146), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19) [2022-01-10 06:35:47,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 181 transitions. [2022-01-10 06:35:47,973 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 181 transitions. Word has length 51 [2022-01-10 06:35:47,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:47,973 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 181 transitions. [2022-01-10 06:35:47,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:35:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 181 transitions. [2022-01-10 06:35:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 06:35:47,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:47,975 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:47,996 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 06:35:48,182 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 06:35:48,182 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:48,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:48,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1685329373, now seen corresponding path program 1 times [2022-01-10 06:35:48,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:48,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676682867] [2022-01-10 06:35:48,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:48,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:48,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:48,186 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:35:48,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:35:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:48,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:35:48,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:35:48,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:48,338 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:48,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676682867] [2022-01-10 06:35:48,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676682867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:48,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:48,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:35:48,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651067835] [2022-01-10 06:35:48,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:48,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:35:48,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:35:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:35:48,340 INFO L87 Difference]: Start difference. First operand 148 states and 181 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:35:48,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:48,356 INFO L93 Difference]: Finished difference Result 341 states and 423 transitions. [2022-01-10 06:35:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:35:48,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-01-10 06:35:48,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:48,361 INFO L225 Difference]: With dead ends: 341 [2022-01-10 06:35:48,361 INFO L226 Difference]: Without dead ends: 201 [2022-01-10 06:35:48,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 06:35:48,362 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 38 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:48,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 183 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:48,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-01-10 06:35:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 199. [2022-01-10 06:35:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 155 states have (on average 1.2451612903225806) internal successors, (193), 163 states have internal predecessors, (193), 23 states have call successors, (23), 18 states have call predecessors, (23), 20 states have return successors, (26), 23 states have call predecessors, (26), 23 states have call successors, (26) [2022-01-10 06:35:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 242 transitions. [2022-01-10 06:35:48,369 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 242 transitions. Word has length 51 [2022-01-10 06:35:48,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:48,370 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 242 transitions. [2022-01-10 06:35:48,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:35:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 242 transitions. [2022-01-10 06:35:48,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 06:35:48,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:48,371 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:48,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:35:48,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:35:48,580 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:48,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:48,580 INFO L85 PathProgramCache]: Analyzing trace with hash 716766725, now seen corresponding path program 1 times [2022-01-10 06:35:48,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:48,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239578050] [2022-01-10 06:35:48,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:48,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:48,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:48,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:35:48,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:35:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:48,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:35:48,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 06:35:48,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:48,752 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:48,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239578050] [2022-01-10 06:35:48,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239578050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:48,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:48,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:35:48,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85608140] [2022-01-10 06:35:48,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:48,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 06:35:48,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 06:35:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:35:48,754 INFO L87 Difference]: Start difference. First operand 199 states and 242 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:35:48,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:48,936 INFO L93 Difference]: Finished difference Result 404 states and 489 transitions. [2022-01-10 06:35:48,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 06:35:48,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2022-01-10 06:35:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:48,938 INFO L225 Difference]: With dead ends: 404 [2022-01-10 06:35:48,938 INFO L226 Difference]: Without dead ends: 213 [2022-01-10 06:35:48,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-01-10 06:35:48,939 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 99 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:48,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 409 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:35:48,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-01-10 06:35:48,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-01-10 06:35:48,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 152 states have (on average 1.2105263157894737) internal successors, (184), 160 states have internal predecessors, (184), 23 states have call successors, (23), 18 states have call predecessors, (23), 20 states have return successors, (26), 23 states have call predecessors, (26), 23 states have call successors, (26) [2022-01-10 06:35:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 233 transitions. [2022-01-10 06:35:48,949 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 233 transitions. Word has length 53 [2022-01-10 06:35:48,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:48,949 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 233 transitions. [2022-01-10 06:35:48,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:35:48,949 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 233 transitions. [2022-01-10 06:35:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 06:35:48,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:48,950 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:48,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 06:35:49,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:35:49,151 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:49,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:49,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1754438647, now seen corresponding path program 1 times [2022-01-10 06:35:49,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:49,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025732398] [2022-01-10 06:35:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:49,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:49,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:49,153 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:35:49,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:35:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:49,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:35:49,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:35:49,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:49,392 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:49,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025732398] [2022-01-10 06:35:49,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025732398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:49,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:49,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:35:49,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064862319] [2022-01-10 06:35:49,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:49,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:35:49,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:49,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:35:49,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:35:49,393 INFO L87 Difference]: Start difference. First operand 196 states and 233 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:35:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:49,757 INFO L93 Difference]: Finished difference Result 609 states and 743 transitions. [2022-01-10 06:35:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 06:35:49,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2022-01-10 06:35:49,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:49,759 INFO L225 Difference]: With dead ends: 609 [2022-01-10 06:35:49,759 INFO L226 Difference]: Without dead ends: 471 [2022-01-10 06:35:49,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:35:49,760 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 232 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:49,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 618 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 06:35:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-01-10 06:35:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 431. [2022-01-10 06:35:49,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 334 states have (on average 1.2005988023952097) internal successors, (401), 353 states have internal predecessors, (401), 50 states have call successors, (50), 39 states have call predecessors, (50), 46 states have return successors, (59), 50 states have call predecessors, (59), 50 states have call successors, (59) [2022-01-10 06:35:49,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 510 transitions. [2022-01-10 06:35:49,784 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 510 transitions. Word has length 55 [2022-01-10 06:35:49,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:49,785 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 510 transitions. [2022-01-10 06:35:49,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:35:49,785 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 510 transitions. [2022-01-10 06:35:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 06:35:49,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:49,786 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:49,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 06:35:50,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:35:50,006 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:50,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1281558822, now seen corresponding path program 1 times [2022-01-10 06:35:50,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:50,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191147268] [2022-01-10 06:35:50,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:50,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:50,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:50,008 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:35:50,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:35:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:50,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:35:50,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:50,198 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-10 06:35:50,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:50,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:50,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191147268] [2022-01-10 06:35:50,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191147268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:50,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:50,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:35:50,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908975430] [2022-01-10 06:35:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:50,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:35:50,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:50,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:35:50,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:35:50,200 INFO L87 Difference]: Start difference. First operand 431 states and 510 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-10 06:35:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:50,234 INFO L93 Difference]: Finished difference Result 848 states and 1013 transitions. [2022-01-10 06:35:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:35:50,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2022-01-10 06:35:50,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:50,236 INFO L225 Difference]: With dead ends: 848 [2022-01-10 06:35:50,237 INFO L226 Difference]: Without dead ends: 473 [2022-01-10 06:35:50,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 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 06:35:50,238 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 36 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:50,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 379 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-01-10 06:35:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 440. [2022-01-10 06:35:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 343 states have (on average 1.19533527696793) internal successors, (410), 362 states have internal predecessors, (410), 50 states have call successors, (50), 39 states have call predecessors, (50), 46 states have return successors, (59), 50 states have call predecessors, (59), 50 states have call successors, (59) [2022-01-10 06:35:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 519 transitions. [2022-01-10 06:35:50,254 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 519 transitions. Word has length 96 [2022-01-10 06:35:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:50,254 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 519 transitions. [2022-01-10 06:35:50,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-10 06:35:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 519 transitions. [2022-01-10 06:35:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 06:35:50,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:50,258 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:50,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:35:50,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:35:50,471 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1415572328, now seen corresponding path program 1 times [2022-01-10 06:35:50,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:50,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715164151] [2022-01-10 06:35:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:50,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:50,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:50,473 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:35:50,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:35:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:50,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:35:50,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 06:35:50,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:35:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:35:51,042 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:51,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715164151] [2022-01-10 06:35:51,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715164151] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:35:51,042 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:35:51,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2022-01-10 06:35:51,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300295503] [2022-01-10 06:35:51,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:35:51,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 06:35:51,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:51,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 06:35:51,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:35:51,043 INFO L87 Difference]: Start difference. First operand 440 states and 519 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2022-01-10 06:35:51,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:51,270 INFO L93 Difference]: Finished difference Result 600 states and 703 transitions. [2022-01-10 06:35:51,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:35:51,271 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) Word has length 96 [2022-01-10 06:35:51,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:51,272 INFO L225 Difference]: With dead ends: 600 [2022-01-10 06:35:51,272 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:35:51,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 178 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-10 06:35:51,273 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 243 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:51,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 549 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:35:51,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:35:51,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:35:51,274 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 06:35:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:35:51,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2022-01-10 06:35:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:51,274 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:35:51,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2022-01-10 06:35:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:35:51,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:35:51,276 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:35:51,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:35:51,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:35:51,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:35:52,823 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 92 98) no Hoare annotation was computed. [2022-01-10 06:35:52,823 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 92 98) the Hoare annotation is: true [2022-01-10 06:35:52,824 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 357 368) the Hoare annotation is: true [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point L361-1(lines 357 368) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 357 368) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point L450-1(line 450) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 444 473) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 444 473) the Hoare annotation is: true [2022-01-10 06:35:52,824 INFO L861 garLoopResultBuilder]: At program point L469(lines 444 473) the Hoare annotation is: true [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 462) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L861 garLoopResultBuilder]: At program point L458-1(lines 458 462) the Hoare annotation is: true [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L861 garLoopResultBuilder]: At program point L454-2(lines 454 468) the Hoare annotation is: true [2022-01-10 06:35:52,824 INFO L861 garLoopResultBuilder]: At program point L450(line 450) the Hoare annotation is: true [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2022-01-10 06:35:52,824 INFO L858 garLoopResultBuilder]: For program point L977(lines 977 983) no Hoare annotation was computed. [2022-01-10 06:35:52,825 INFO L854 garLoopResultBuilder]: At program point L337-2(lines 333 344) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)))) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:35:52,825 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 65 91) no Hoare annotation was computed. [2022-01-10 06:35:52,825 INFO L854 garLoopResultBuilder]: At program point L164(lines 159 166) the Hoare annotation is: (let ((.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0))) (or .cse2 .cse0 .cse1))) [2022-01-10 06:35:52,825 INFO L854 garLoopResultBuilder]: At program point L961(lines 954 963) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and (= (_ bv0 32) ~pumpRunning~0) .cse1)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) .cse0))) [2022-01-10 06:35:52,825 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 255) no Hoare annotation was computed. [2022-01-10 06:35:52,825 INFO L858 garLoopResultBuilder]: For program point L251-2(lines 251 255) no Hoare annotation was computed. [2022-01-10 06:35:52,825 INFO L854 garLoopResultBuilder]: At program point L974(line 974) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse3 .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) .cse2)) (or .cse3 .cse0 .cse1))) [2022-01-10 06:35:52,825 INFO L854 garLoopResultBuilder]: At program point L429(lines 424 432) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)))) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:35:52,825 INFO L858 garLoopResultBuilder]: For program point L974-1(line 974) no Hoare annotation was computed. [2022-01-10 06:35:52,825 INFO L854 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0))) [2022-01-10 06:35:52,825 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-01-10 06:35:52,825 INFO L854 garLoopResultBuilder]: At program point L145(line 145) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| (_ bv0 32))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (and (= (_ bv0 32) ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not .cse2) (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse3) (or .cse0 .cse1 .cse3))) [2022-01-10 06:35:52,826 INFO L854 garLoopResultBuilder]: At program point L145-1(lines 126 150) the Hoare annotation is: (let ((.cse5 (= |old(~pumpRunning~0)| (_ bv0 32)))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not .cse5)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse2 .cse3)) (or .cse4 .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) .cse2) .cse5) (or .cse4 .cse0 .cse1 .cse3)))) [2022-01-10 06:35:52,826 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 79 85) no Hoare annotation was computed. [2022-01-10 06:35:52,826 INFO L854 garLoopResultBuilder]: At program point L257(lines 242 260) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~1#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32)))) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:35:52,826 INFO L854 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and (= (_ bv0 32) ~pumpRunning~0) .cse1)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) .cse0))) [2022-01-10 06:35:52,826 INFO L858 garLoopResultBuilder]: For program point L959-1(line 959) no Hoare annotation was computed. [2022-01-10 06:35:52,826 INFO L854 garLoopResultBuilder]: At program point L439(lines 434 441) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0))) [2022-01-10 06:35:52,826 INFO L854 garLoopResultBuilder]: At program point L406(lines 401 409) the Hoare annotation is: (let ((.cse5 (= |old(~pumpRunning~0)| (_ bv0 32)))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not .cse5))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse2 .cse3)) (or .cse4 .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) .cse2) .cse5) (or .cse4 .cse0 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) .cse3) .cse1)))) [2022-01-10 06:35:52,826 INFO L858 garLoopResultBuilder]: For program point L976(lines 976 986) no Hoare annotation was computed. [2022-01-10 06:35:52,826 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 91) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and (= (_ bv0 32) ~pumpRunning~0) .cse1)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) .cse0))) [2022-01-10 06:35:52,826 INFO L858 garLoopResultBuilder]: For program point L972(lines 972 989) no Hoare annotation was computed. [2022-01-10 06:35:52,826 INFO L854 garLoopResultBuilder]: At program point L972-1(lines 964 992) the Hoare annotation is: (let ((.cse5 (= |old(~pumpRunning~0)| (_ bv0 32)))) (let ((.cse2 (not .cse5)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) (= (_ bv2 32) |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1|) .cse3)) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse4 .cse3)) (or .cse0 .cse1 (and (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_isLowWaterLevel_~tmp~3#1| (_ bv0 32)) .cse4) .cse5)))) [2022-01-10 06:35:52,826 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 91) no Hoare annotation was computed. [2022-01-10 06:35:52,826 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 438) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 78) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 68 90) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 142) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 147) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L854 garLoopResultBuilder]: At program point L287(line 287) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:35:52,827 INFO L861 garLoopResultBuilder]: At program point L539(lines 520 542) the Hoare annotation is: true [2022-01-10 06:35:52,827 INFO L854 garLoopResultBuilder]: At program point L502(lines 498 504) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:52,827 INFO L854 garLoopResultBuilder]: At program point L321(lines 274 322) the Hoare annotation is: false [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point L276(lines 275 320) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 316) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L854 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:35:52,827 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:35:52,827 INFO L854 garLoopResultBuilder]: At program point L574(lines 569 577) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:52,827 INFO L854 garLoopResultBuilder]: At program point L318(lines 275 320) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 291) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L285-1(lines 285 291) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L854 garLoopResultBuilder]: At program point L566(lines 562 568) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L277(lines 277 281) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L854 garLoopResultBuilder]: At program point L951(lines 946 953) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 315) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L854 garLoopResultBuilder]: At program point L311-2(lines 305 316) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L530(lines 530 537) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L530-2(lines 530 537) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L854 garLoopResultBuilder]: At program point L559(lines 555 561) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L295(lines 295 301) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L858 garLoopResultBuilder]: For program point L295-1(lines 295 301) no Hoare annotation was computed. [2022-01-10 06:35:52,828 INFO L861 garLoopResultBuilder]: At program point L324(lines 265 328) the Hoare annotation is: true [2022-01-10 06:35:52,828 INFO L861 garLoopResultBuilder]: At program point L514(lines 506 516) the Hoare annotation is: true [2022-01-10 06:35:52,828 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 100 124) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) .cse2))) [2022-01-10 06:35:52,828 INFO L854 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv1 32)))) (let ((.cse0 (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| (_ bv0 32)))) (.cse1 (not .cse3)) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv2 32))) .cse2) (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 (_ bv1 32))))))) [2022-01-10 06:35:52,829 INFO L854 garLoopResultBuilder]: At program point L238(lines 223 241) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2) (or .cse0 (and (= (_ bv0 32) |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| (_ bv0 32)) .cse2) .cse1 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 116) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 121) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 236) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point L232-2(lines 232 236) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 420) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L854 garLoopResultBuilder]: At program point L156(lines 151 158) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or (not (= (_ bv0 32) ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 100 124) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L854 garLoopResultBuilder]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)))) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point L119-1(lines 100 124) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L854 garLoopResultBuilder]: At program point L419(lines 410 423) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) .cse2)) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2))) [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 345 356) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point L349-1(lines 345 356) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 345 356) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= (_ bv0 32) ~pumpRunning~0)) .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1))) [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 178 186) no Hoare annotation was computed. [2022-01-10 06:35:52,829 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 178 186) the Hoare annotation is: true [2022-01-10 06:35:52,829 INFO L858 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 178 186) no Hoare annotation was computed. [2022-01-10 06:35:52,832 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:52,832 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:35:52,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:35:52 BoogieIcfgContainer [2022-01-10 06:35:52,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:35:52,847 INFO L158 Benchmark]: Toolchain (without parser) took 8580.20ms. Allocated memory was 197.1MB in the beginning and 259.0MB in the end (delta: 61.9MB). Free memory was 146.4MB in the beginning and 149.9MB in the end (delta: -3.5MB). Peak memory consumption was 120.6MB. Max. memory is 8.0GB. [2022-01-10 06:35:52,847 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:35:52,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.04ms. Allocated memory is still 197.1MB. Free memory was 146.3MB in the beginning and 158.8MB in the end (delta: -12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 06:35:52,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.70ms. Allocated memory is still 197.1MB. Free memory was 158.8MB in the beginning and 156.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 06:35:52,848 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 197.1MB. Free memory was 156.1MB in the beginning and 154.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 06:35:52,848 INFO L158 Benchmark]: RCFGBuilder took 472.95ms. Allocated memory is still 197.1MB. Free memory was 154.6MB in the beginning and 136.8MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-01-10 06:35:52,848 INFO L158 Benchmark]: TraceAbstraction took 7532.48ms. Allocated memory was 197.1MB in the beginning and 259.0MB in the end (delta: 61.9MB). Free memory was 136.2MB in the beginning and 149.9MB in the end (delta: -13.6MB). Peak memory consumption was 110.6MB. Max. memory is 8.0GB. [2022-01-10 06:35:52,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 483.04ms. Allocated memory is still 197.1MB. Free memory was 146.3MB in the beginning and 158.8MB in the end (delta: -12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.70ms. Allocated memory is still 197.1MB. Free memory was 158.8MB in the beginning and 156.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 197.1MB. Free memory was 156.1MB in the beginning and 154.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 472.95ms. Allocated memory is still 197.1MB. Free memory was 154.6MB in the beginning and 136.8MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 7532.48ms. Allocated memory was 197.1MB in the beginning and 259.0MB in the end (delta: 61.9MB). Free memory was 136.2MB in the beginning and 149.9MB in the end (delta: -13.6MB). Peak memory consumption was 110.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 438]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 943 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 913 mSDsluCounter, 3547 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2347 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1100 IncrementalHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 1200 mSDtfsCounter, 1100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 716 GetRequests, 649 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=440occurred in iteration=10, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 107 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 871 PreInvPairs, 923 NumberOfFragments, 1056 HoareAnnotationTreeSize, 871 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 1501 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 686 ConstructedInterpolants, 0 QuantifiedInterpolants, 1664 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2123 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 109/126 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: 520]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 946]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && (!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: ((((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((\result == 0bv32 && waterLevel == 1bv32) && tmp == 0bv32) && 0bv32 == pumpRunning)) || \old(pumpRunning) == 0bv32)) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (\result == 2bv32 && waterLevel == \old(waterLevel))) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) && (((!(systemActive == 1bv32) || ((0bv32 == tmp___0 && \result == 0bv32) && 0bv32 == pumpRunning)) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) - InvariantResult [Line: 159]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((\result == 0bv32 && waterLevel == 1bv32) && tmp == 0bv32) && 0bv32 == pumpRunning))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: ((waterLevel == 2bv32 && systemActive == 1bv32) && splverifierCounter == 0bv32) || (((systemActive == 1bv32 && waterLevel == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((((1bv32 == tmp___0 && \result == 0bv32) && \old(pumpRunning) == pumpRunning) && waterLevel == 1bv32) && tmp == 0bv32) && \result == 1bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) || (\result == 1bv32 && 0bv32 == pumpRunning)) && (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || ((\result == 0bv32 && \old(pumpRunning) == pumpRunning) && waterLevel == 1bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 964]: Loop Invariant Derived loop invariant: ((((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || ((\result == 2bv32 && 2bv32 == tmp) && waterLevel == \old(waterLevel))) && (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel)))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((\result == 0bv32 && waterLevel == 1bv32) && tmp == 0bv32) && 0bv32 == pumpRunning)) || \old(pumpRunning) == 0bv32) - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (\old(pumpRunning) == pumpRunning && waterLevel == 1bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 444]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 569]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 954]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || (\old(pumpRunning) == pumpRunning && waterLevel == \old(waterLevel))) || !(systemActive == 1bv32)) - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((\result == 0bv32 && waterLevel == 1bv32) && tmp == 0bv32) && 0bv32 == pumpRunning)) || \old(pumpRunning) == 0bv32)) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || waterLevel == \old(waterLevel)) RESULT: Ultimate proved your program to be correct! [2022-01-10 06:35:52,885 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...